Environmentally responsible insulating construction blocks and structures
10435887 ยท 2019-10-08
Assignee
Inventors
Cpc classification
E04D13/1687
FIXED CONSTRUCTIONS
B32B2250/44
PERFORMING OPERATIONS; TRANSPORTING
E04B2001/746
FIXED CONSTRUCTIONS
B32B15/04
PERFORMING OPERATIONS; TRANSPORTING
B32B13/04
PERFORMING OPERATIONS; TRANSPORTING
B32B2307/726
PERFORMING OPERATIONS; TRANSPORTING
E04D11/02
FIXED CONSTRUCTIONS
B32B3/08
PERFORMING OPERATIONS; TRANSPORTING
Y02B80/32
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
B32B7/12
PERFORMING OPERATIONS; TRANSPORTING
E04D7/00
FIXED CONSTRUCTIONS
E04D13/16
FIXED CONSTRUCTIONS
E04D5/10
FIXED CONSTRUCTIONS
B32B21/14
PERFORMING OPERATIONS; TRANSPORTING
E04B1/74
FIXED CONSTRUCTIONS
E04D11/002
FIXED CONSTRUCTIONS
B32B3/02
PERFORMING OPERATIONS; TRANSPORTING
Y02W30/91
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
B32B23/046
PERFORMING OPERATIONS; TRANSPORTING
E04B7/22
FIXED CONSTRUCTIONS
B32B5/16
PERFORMING OPERATIONS; TRANSPORTING
E04C1/41
FIXED CONSTRUCTIONS
Y02P40/10
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
E04D3/351
FIXED CONSTRUCTIONS
B32B5/30
PERFORMING OPERATIONS; TRANSPORTING
B32B9/002
PERFORMING OPERATIONS; TRANSPORTING
E04D3/18
FIXED CONSTRUCTIONS
Y02A30/244
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
B32B2307/3065
PERFORMING OPERATIONS; TRANSPORTING
E04D13/1693
FIXED CONSTRUCTIONS
Y02A30/254
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
B32B2264/0207
PERFORMING OPERATIONS; TRANSPORTING
C04B2111/00612
CHEMISTRY; METALLURGY
International classification
B32B23/04
PERFORMING OPERATIONS; TRANSPORTING
E04D3/18
FIXED CONSTRUCTIONS
E04D3/35
FIXED CONSTRUCTIONS
E04D5/10
FIXED CONSTRUCTIONS
E04D11/02
FIXED CONSTRUCTIONS
E04D11/00
FIXED CONSTRUCTIONS
E04D7/00
FIXED CONSTRUCTIONS
E04B1/74
FIXED CONSTRUCTIONS
E04B7/22
FIXED CONSTRUCTIONS
E04C1/41
FIXED CONSTRUCTIONS
Abstract
Environmentally responsible insulating construction blocks and structures constructed primarily of recycled materials are disclosed. The environmentally friendly construction blocks and structures comprise shredded rubber tire pieces coated with silica fume, slag cement and cement, which are then mixed with water and formed in a mold. A layer of grout or a fireproof material may be disposed on one side of the environmentally responsible insulating construction block. The environmentally responsible insulating construction blocks provide high insulation as well as strength for applications such as green roofing, wall construction and green roofing decks. Environmentally friendly structures can be built by pouring the coated shredded rubber tire pieces into molds to form walls, and then to pour a layer of the coated shredded rubber tire pieces as a roof deck, thereby creating a self-supporting structure in a monolithic pour.
Claims
1. An environmentally responsible insulated construction block comprising: a plurality of shredded rubber tire pieces coated with silica fume, slag cement and cement forming a block having a top surface, a bottom surface substantially parallel to the top surface and 4 side surfaces substantially perpendicular to the top surface and the bottom surface, wherein the block has a depth defined by the distance between the top surface and the bottom surface; wherein the shredded rubber tire pieces range in size of between about inch to 2 inches, wherein the shredded rubber tire pieces comprise at least 50% by weight of the environmentally responsible insulated construction block, wherein the environmentally responsible insulated construction block forms an open interior matrix structure.
2. The environmentally responsible insulated construction block of claim 1, further comprising one or more layers of grout disposed on the exterior of the top surface, the bottom surface or both the top and the bottom surfaces.
3. The environmentally responsible insulated construction block of claim 2, wherein the block is used in a roofing system.
4. The environmentally responsible insulated construction block of claim 3, wherein the roofing system comprises a low slope roofing system.
5. The environmentally responsible insulated construction block of claim 1, wherein the block is about 12 inches square.
6. The environmentally responsible insulated construction block of claim 5, wherein the thickness of the block is greater than about 2 inches.
7. The environmentally responsible insulated construction block of claim 6, wherein the thickness of the block is about 4 inches.
8. The environmentally responsible insulated construction block of claim 6, wherein the thickness of the block is between about 2 inches and about 20 inches.
9. The environmentally responsible insulated construction block of claim 1 for use in construction of a wall, a deck or a walkway.
Description
BRIEF DESCRIPTION OF THE DRAWINGS.
(1) The invention will now be described, by way of example, with reference to the accompanying drawings, in which like numerals refer to like elements.
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DETAILED DESCRIPTION OF THE INVENTION.
(9) The invention relates to environmentally responsible insulating construction blocks for green roofing and green decking applications. The environmentally responsible insulating construction blocks provide high insulation as well as strength. Additionally, environmentally friendly structures can be built in one single monolithic pour.
(10) In one embodiment of the invention, an environmentally responsible insulating construction block is provided for use for green roofing applications. In this embodiment, the environmentally responsible insulating construction block is adhered to a waterproof membrane that is adhered to the top layer of an insulating layer of a membrane roofing system that is adhered to a roof substrate of a building.
(11) Environmentally responsible insulated construction blocks used for green roofing applications comprise coated shredded rubber pieces having a top layer of dried grout that is dried into a block comprising a bottom surface, a top surface, the top surface comprising the grout layer, and four side surfaces substantially perpendicular to the top surface and the bottom surface, wherein the environmentally responsible insulating construction blocks have a thickness defined by the distance between the top surface and the bottom surface. The environmentally responsible insulated construction blocks comprising the coated shredded rubber mixture and dried grout are glued or otherwise adhered to a roof substrate of a building to provide an insulating layer for a membrane roofing system. A waterproof membrane is glued or otherwise adhered to the grout layer of the environmentally responsible insulated construction blocks. The environmentally responsible insulating construction blocks of the invention comprising the coated shredded rubber mixture and a top layer of dried grout are adhered to the waterproof membrane. In one embodiment, the tops of the environmentally responsible insulated construction blocks may be shaped in a manner to induce liquid flow toward a desired direction, for example to a drain.
(12) In one embodiment, the environmentally responsible insulating construction blocks for green roofing application are provided in side by side relation to substantially similar environmentally responsible insulating construction blocks and adhered to a roof substrate to provide an insulating layer for a membrane roofing system. A waterproof membrane is glued to the top of the environmentally responsible insulating construction blocks for green roofing application, and the environmentally responsible insulated construction blocks for green roofing application are then adhered to the waterproof membrane to form a green roof.
(13) In one embodiment of the invention, an environmentally responsible insulating construction block is provided for use for green decking applications. In this embodiment, the environmentally responsible insulating construction block is adhered to a surface to provide a green deck to which growing media or tiles may be adhered. The environmentally responsible insulating construction blocks for green decking application comprise a porous matrix through which water can flow freely.
(14) Environmentally responsible insulated construction blocks used for green decking applications comprise coated shredded rubber pieces that are dried into a block comprising a bottom surface, a top surface, the top surface comprising a permeable fireproof material, and four side surfaces substantially perpendicular to the top surface and the bottom surface, wherein the environmentally responsible insulating construction blocks for decking application have a thickness defined by the distance between the top surface and the bottom surface. The environmentally responsible insulated construction blocks for decking application comprising the coated shredded rubber mixture and permeable waterproof material are glued or otherwise adhered to a substrate of the roof of a building to provide a porous deck to which growing media and/or pavers and tiles can be adhered.
(15) In one embodiment, the permeable fireproof material comprises expanded slate.
(16) In one embodiment, a plurality of environmentally responsible insulating construction blocks for roofing application is adhered to a waterproof membrane that is adhered to the top layer of an insulating layer of a roofing system that is adhered to a roof substrate of a building to provide a green roof. A second layer of environmentally responsible insulating construction blocks having a top layer of a permeable fireproof material are adhered to the top layer of the green roof to form a green deck. In one embodiment, the tops of the environmentally responsible insulating construction blocks for green roofing application are tapered to create a slope to drain roofing system. The bottom surfaces of the environmentally responsible insulated construction blocks for green decking application are tapered to correspond to the tapering of the tops of the environmentally responsible insulated construction blocks for green roofing application. The slope of the tops and bottoms of the environmentally responsible insulating construction blocks for roofing application and decking application direct liquids to a roof drain. The permeability of the environmentally responsible insulating construction blocks for green decking application allows for water to pass through and be directed to the roof drain.
(17) In one embodiment, the shredded rubber tire pieces comprise shredded tires. In one embodiment, the shredded rubber tire pieces are shredded to a size such that the steel from the tires is removed but nylon remains in the shredded rubber tire pieces. In one embodiment, the shredded rubber tire pieces are approximately 2 inches nominal size. In one embodiment, the shredded rubber tire pieces have a size greater than approximately inch but smaller than approximately 2 inches. In one embodiment, the shredded rubber tire pieces have a size greater than approximately 1 inch but smaller than approximately 2 inches.
(18) In one embodiment of the invention, the environmentally responsible insulating construction blocks have a thickness (measured from the bottom surface to the top surface) ranging from around 2 inches to around 20 inches, with length and width (measured along the side surfaces) of around 12 inches square. Other dimensions of the environmentally responsible insulating construction blocks may be constructed in accordance with the principles of the invention and these preceding dimensions are listed as examples only and are not intended in any way to limit the invention.
(19) In one embodiment, the green roof and green deck made from the environmentally responsible insulated construction blocks meet building codes designed to withstand severe weather conditions, such as strong winds. 101.4.2 Florida Building Code (FBC), for example, applies to the construction, erection, alteration, modification, repair, equipment, use and occupancy, location, maintenance, removal and demolition of every public and private building, structure . . . and sets forth requirements for buildings to withstand wind forces resulting from design wind speeds. In Broward County, Florida, buildings must withstand wind forces of 140 mph, and in Miami-Dade County, Florida, buildings must withstand wind forces of 146 mph. Other standards exist, for example ASCE (American Society of Civil Engineers)-7 and Florida Statute 553.844 setting forth Building Construction Standards titled Windstorm loss mitigation; requirements for roofs and opening protection. These standards may also apply to roof and deck replacement.
(20) In one embodiment, the coated shredded rubber tire mixture is poured into molds in a monolithic pour to form walls for a structure. In one embodiment, the coated shredded rubber tire mixture is poured directly onto a scarified concrete slab. In one embodiment, the coated shredded rubber tire mixture is poured on top of a layer of grout that has been placed on top of a scarified concrete slab. Rods are inserted through the length of the molds so that a top can be placed on the poured coated shredded rubber tire mixture for compression while it dries. The top may be a plywood sheet.
(21) In one embodiment, a layer of coated shredded rubber tire mixture is poured on a plywood layer to form a roof covering. A plurality of rods extends upward from the plywood layer to allow for a top to be placed over the poured coated shredded rubber tire mixture to compress it while it dries.
(22) Turning to the figures,
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(42) The order of mixing of ingredients may be altered as desired by the operator. For example, the shredded rubber tire pieces or waterproof material, such as expanded slate, expanded slate may be placed in the mixer, then the dry mixture of silica fume, slag cement and cement may be added prior to mixing.
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(53) Environmentally responsible insulated construction blocks 610 are attached to the metal or concrete deck 630 using high strength self-setting grout 640, and a waterproof membrane 650 is disposed on an adhesive or glue layer 625 that is disposed on the top surfaces 615 of the environmentally responsible insulated construction blocks 610.
(54) In one embodiment, waterproof membrane 650 comprises any membrane known today or later developed for roofing or other construction purposes. Waterproof membrane 650 may vary according to the use and the climate of the construction.
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EXAMPLES
(63) The following examples illustrate the manufacture and characteristics of environmentally responsible insulated construction blocks in further detail. These examples are exemplary only and in no way limit or are intended to limit the scope of this invention.
Example 1
(64) Manufacture of an Environmentally Responsible Insulated Construction Block For Green Decking Application.
(65) Approximately 1 gallon of silica fume weighing 6.4 lbs., approximately 1 gallon of slag cement weighing 9.2 lbs. and approximately 1.5 gallons of Portland cement weighing 15.3 lbs. were mixed together for at least 2 minutes. Rubber tires were shredded to a size range of approximately to 2 inches wherein the steel from the tires was removed but nylon from the tires remained in the shredded rubber tire pieces. Seventy-five (75) lbs. of the shredded tire pieces were added to the mix, and the resulting mixture was mixed for another five (5) minutes. Thereafter, 2 gallons of water were added to wet the dry shredded rubber tire mixture.
(66) Separately, 3 gallons of expanded slate was mixed with 25.6 oz. slag cement, 25.6 oz. silica fume and 38.4 oz. Portland cement were mixed together for at least five (5) minutes. Thereafter, 51.2 oz. water were added to wet the dry expanded slate mixture.
(67) A layer of the wetted shredded rubber tire mixture was poured into molds sized 12 inches by 12 inches by 4 inches deep to which approximately 1 inch of the wetted expanded slate mixture had previously been added. The molds were filled and a lid closed over the mold and left to dry for 5 days at room temperature in the ambient environment. Once the mixture was dry in each mold, the resulting environmentally responsible insulated construction blocks were removed and were ready for use in green decking applications.
Example 2
(68) Environmentally responsible insulated construction blocks for green decking application were prepared as in Example 1 except that the bottom of the mold is sloped.
(69) The dried environmentally responsible insulated construction blocks have a sloped top surface comprising expanded slate.
Example 3
(70) [Manufacture of an Environmentally Responsible Insulated Construction Block For Green Roofing Application.]
(71) Environmentally responsible insulated construction blocks for green roofing applications were prepared by mixing together 1 gallon of silica fume weighing 6.4 lbs., approximately 1 gallon of slag cement weighing 9.2 lbs. and approximately 1.5 gallons of Portland cement weighing 15.3 lbs. for at least 2 minutes. Rubber tires were shredded to a size range of approximately to 2 inches wherein the steel from the tires was removed but nylon from the tires remained in the shredded rubber tire pieces. Seventy-five (75) lbs. of the shredded tire pieces were added to the mix, and the resulting mixture was mixed for another five (5) minutes. Thereafter, 2 gallons of water were added to wet the dry shredded rubber tire mixture. When the mixture was fully wetted, the mixture was poured into molds sized 12 inches by 12 inches and having a thickness of around 4 inches to which inch of grout had previously been added. The molds were filled and a lid closed over the mold and left to dry for 5 days at room temperature in the ambient environment. Once the mixture was dry in each mold, the resulting environmentally responsible insulated construction blocks were removed and then attached to the metal or concrete deck of the top of a building using high strength self-setting grout. A waterproof membrane was disposed on an adhesive or glue layer that was disposed on the top surfaces of the environmentally responsible insulated construction blocks. Thereafter a plurality of the environmentally responsible insulated construction blocks prepared as in Example 2 were adhered to the waterproof membrane in a green roofing application.
Example 4
(72) The environmentally responsible insulated construction blocks for green decking application were tested alone and as attached to various roofing systems, and also environmentally responsible insulated construction blocks for green roofing application as described in Example 3 for the following: wind uplift testing; Class A fire rating; field withdrawal resistance testing; metal edge attachment testing; sound transmission loss; compression testing; steady-state thermal transmission properties; flow of water; age testing; and recycled content, as well as physical properties testing. The results are presented below.
(73) TAS 114-95 Wind uplift testing. Environmentally responsible insulated construction block for green roofing application adhesive foam attached to 2 extruded polystyrene insulationat 502.5 PSF no failure recorded Environmentally responsible insulated construction block for green decking application over environmentally responsible insulated construction block for green roofing application adhesive foam attached to 2 polystyrene insulationfailure at 387.5 PSF Paver on environmentally responsible insulated construction block for green decking application over environmentally responsible insulated construction block for green roofing application attached to concrete slab with groutfailure at 400 PSF Artificial turf on environmentally responsible insulated construction block for green decking application over environmentally responsible insulated construction block for green roofing application attached to concrete slab with groutfailure at 330 PSF Environmentally responsible insulated construction block for green roofing application attached to concrete slab via groutfailure at 222.5 PSF Paver on environmentally responsible insulated construction block for green decking application over environmentally responsible insulated construction block for green roofing application adhesive foam attached to 2 polystyrene insulationfailure at 300 PSF
(74) UL 790 Class A Fire Rating. 4 environmentally responsible insulated construction block for green roofing application at infinite slope 1 ft. no ignition testPASS 4 thick environmentally responsible insulated construction block for green decking application with artificial turf slope . Melt on test sample is 30 inches no ignition testPASS 4 thick environmentally responsible insulated construction block for green decking application with artificial turf slope . Melt on test sample is 27 inches no ignition testPASS 4 thick environmentally responsible insulated construction block for green roofing application at 3 slope. Surface char 2 ft. no ignition testPASS
(75) TAS-105 Field Withdrawal Resistance Testing. Ten environmentally responsible insulated construction block for green decking application were tested for Withdrawal Resistance Testing. Fastener used 3- Spade Point Headlok Fastener by Olympic Fasteners, Inc. The selected estimator value t based on statistical 95% probability Tvp=2.262. The calculated mean FM=a/N(Sum Fi)=364.0. The calculated standard deviation (SF)=Sqrt[((1/N1) (Sum(FiFM)^2))]=110.294. The % deviation (PD)=30.30%. According to TAS 105-11 (FBC 2114 & FM 1-52), F2014=FM(Tvp)(SF/Sqrt N), here F2014=285.11. The MCRF14 (Minimum Characteristic Resistance Force)=F2014=285.11.
(76) TAS-111(B)-95 Metal Edge Attachment Testing. Environmentally responsible insulated construction block for green roofing application was tested by PRI Construction Materials Technologies, Inc. for the pullout values of a drip edge. Horizontal loads were applied in 50 lbf increments for 60 seconds beginning with a 300 lbf load. After each loading interval, the load was reduced to zero and maintained for 120 seconds prior to incrementing the load and additional 50 lbf load. The average failure load was 350 lbf, with maximum pressure of 1050 psf.
(77) ASTM E90-09 Sound Transmission Loss. Environmentally responsible insulated construction block for green roofing application STC=39 OITC=36
(78) ASTM C39 Compression Testing.
(79) Environmentally responsible insulated construction block for green roofing application
(80) 7 Days 80 PSI 28 Days 89 PSI 28 Days 96 PSI 56 Days 94 PSI
Environmentally responsible insulated construction block for green decking application 7 Days 96 PSI 28 Days 89 PSI 28 Days 83 PSI 56 Days 87 PSI
(81) ASTM C-518 Standard Test Method of Steady-State Thermal Transmission Properties by means of Heat Flow Meter Apparatus. Environmentally responsible insulated construction block for green roofing application R-Value=1.3127 per inch
(82) UL Flow Rate of Water Passing Thru Environmentally Responsible Insulated Construction Blocks for Green Decking Application. 4 Thick environmentally responsible insulated construction block for green decking application Prewetting Time Elapsed 20 Seconds, 8 LBS of water poured, 7.4 lbs of water collected, 0.6 lbs water retained Testing Time Elapse 35 Seconds, 40 lbs of water poured, 38.7 lbs of water collected, 1.3 lbs water retained 12 Thick Sample Prewetting Time Elapsed 55 seconds, 8 lbs of water poured, 6.6 lbs collected, 1.4 lbs of water retained Testing Time Elapsed 65 Seconds, 40 lbs of water poured, 38.4 lbs water collected, 1.6 lbs of water absorbed.
(83) Age Testing. Environmentally responsible insulated construction block for green roofing application was tested at PRI Construction Materials Technologies, Inc. for aging by exposure to UV light at a constant temperature for 5000 hours under AC 48 UV light.
(84) Physical Properties Testing. Environmentally responsible insulated construction block for green roofing application was tested at PRI Construction Materials Technologies, Inc. for physical properties testing, specifically flexural strength of concrete using ASTM C293-16 and for Impact Resistance under UL 2218. ASTM C293Pre-weathering: 367 lbs.; post-weathering: 415 lbs. (5000 hrs. AC 48 UV weathering) UL2218 Class 4 Impact Hail Test (Steel Ball)Passed
(85) Recycled Content. Environmentally responsible insulated construction block for green roofing application and environmentally responsible insulated construction block for green decking application were both certified by SCS Global Services for recycled content. Environmentally responsible insulated construction block for green roofing application4 thick87.53% recycled content by volume Environmentally responsible insulated construction block for green roofing application8 thick90.57% recycled content by volume Environmentally responsible insulated construction block for green decking application4 thick80.59% recycled content by volume Environmentally responsible insulated construction block for green decking application4 thick86.18% recycled content by volume
(86) Maximum Design Pressure (Steel Deck).
(87) A plurality of environmentally responsible insulated construction blocks for green roofing application having a slope was adhered using AH-160 propack adhesive continuous 1- inch beads spaced 6 O.C. to min. 22 GA 1.5 Type B galvanized steel deck. An 8000 psi structural concrete surface was adhered to the top surface of the plurality of environmentally responsible insulated construction blocks for green roofing application to which was applied a NOA-approved fully adhered roofing system. The maximum design pressure measured was 292.5 psf.
Example 5
(88) A structure having four walls and a roof was built using the coated shredded rubber tire mixture of EXAMPLE 3. A scarified concrete slab was poured as the base of the structure. Molds for walls of about twelve (12) inches thickness were constructed and a layer of grout was placed over the scarified concrete slab at the base of the molds. Metal rods were inserted from the base to extend beyond the tops of the molds. A plywood sheet was placed on top of the poured coated shredded rubber tire mixture to provide compression to the mixture while it dried. A roof structure was built on the top of the walls using plywood. A layer of the coated shredded rubber tire mixture twelve (12) inches thick was poured on the plywood layer to form the roof. The roof was thereafter coated with stucco and roof paint. A plurality of rods extended upward from the plywood layer to allow for a top to be placed over the poured coated shredded rubber tire mixture to compress it while it dried.
(89) The structure comprising was tested and found to have a load bearing capacity of 20,106 lbs. During testing, the structure sagged inch due to weight load but the sag decreased to inch when the weight was removed. The structure was measured to have an R-value of 15.72 with a recycled content of about 93.83%.
(90) In the foregoing description, the invention has been described with reference to specific exemplary embodiments thereof. It will be apparent to those skilled in the art that a person understanding this invention may conceive of changes or other embodiments or variations, which utilize the principles of this invention without departing from the broader spirit and scope of the invention. The specification and drawings are, therefore, to be regarded in an illustrative rather than a restrictive sense.