Patent classifications
C08L2555/86
Asphalt compositions and methods of forming the same
An asphalt composition includes asphalt, a non-epoxidized oil chosen from flux oils, bio oils, recycled motor oils, liquid plasticizers, and combinations thereof, and a polyolefin. The polyolefin has a weight average molecular weight (Mw) of from about 1,000 to about 20,000 g/mol, an optional acid number of from about 10 to about 50 mg KOH/g, an optional saponification number of from about 10 to about 100 mg KOH/g, and a density of from about 0.92 to about 1 g/cm.sup.3. The asphalt composition has a performance grade of PG (52 to 88) and (−22 to −40), wherein (52 to 88) is an average seven day maximum pavement design temperature in degrees Celsius and represents deformation resistance and (−22 to −40) is an average one day minimum pavement design temperature in degrees Celsius and represents thermal cracking resistance, each as determined using AASHTO M320.
FIRE-RESISTANT MODIFIED BITUMINOUS COMPOSITIONS AND ROOFING PRODUCTS
The present disclosure related generally to a bituminous composition suitable for use in roofing material, the bituminous composition a bituminous component comprising an asphalt component in an mount in the range of 75-95 wt% of the bituminous component, a rubber polymer in an amount of 5-20 wt% of the bituminous component, and a polyolefin wax in an amount up to 5 wt% of the bituminous component; and dispersed within the bituminous component, a filler component comprising at least one of both huntite and hydromagnesite; wollastonite; and both magnesium hydroxide and zinc borate, wherein the total amount of the huntite, hydromagnesite, wollastonite, magnesium hydroxide and zinc borate is in the range of 20-70 wt% of the bituminous component.
Lightweight filler for waterproofing bitumen membranes
A waterproofing membrane including a reinforcing material coated with a blend formulation, the blend formulation including glass spheres having a particle size between 0.25-0.50 mm and a particle density between 0.5-0.8 g/cm.sup.3.
Hardening asphalt for roofing applications
Some embodiments relate to a method comprising one or more of the following steps: obtaining asphalt, obtaining at least one hardening agent, mixing the at least one hardening agent with the asphalt, so as to form a hardened asphalt, obtaining at least one polymer, mixing the at least one polymer with the hardened asphalt, so as to form a polymer modified asphalt, obtaining at least one filler, mixing the at least one filler with at least one of the hardened asphalt, the polymer modified asphalt, or any combination thereof, so as to form a filled coating, obtaining a roofing substrate, and applying the filled coating to the roofing substrate, so as to form a roofing shingle.
METHOD AND SYSTEMS FOR TRANSPORTING BITUMEN IN SOLIDIFIED FORM
A solid bitumen pellet, including a mixture of bitumen and an additive, where the additive operates to increase the viscosity of the mixture. Optionally, the pellet includes a protective shell.
Modified asphalts with enhanced rheological properties and associated methods
A modified asphalt binder with improved elastic properties and methods of making such modified asphalt binder. The modified asphalt binders may include one or more of an asphalt binder, a solvent deasphalted (SDA) pitch, a polymeric material, and optionally, a ground tire rubber. The disclosed modified asphalt binders exhibit properties consistent with decreased susceptibility to rutting and thus may be used in asphalt concrete applications.
MODIFIED ASPHALTS WITH ENHANCED RHEOLOGICAL PROPERTIES AND ASSOCIATED METHODS
A modified asphalt binder with improved elastic properties and methods of making such modified asphalt binder. The modified asphalt binders may include one or more of an asphalt binder, a solvent deasphalted (SDA) pitch, a polymeric material, and optionally, a ground tire rubber. The disclosed modified asphalt binders exhibit properties consistent with decreased susceptibility to rutting and thus may be used in asphalt concrete applications.
ROAD MAKING MATERIAL, A METHOD OF PRODUCING A ROAD MAKING MATERIAL AND A ROAD MADE THEREFROM
The present invention relates to a road making material comprising aggregate, bitumen, and a plastics material, wherein: (a) when the road making material is 10 mm stone mastic asphalt, the bitumen comprises at least 4.7% but no more than 5.69% by weight of the aggregate, bitumen, and plastics material mix; (b) when the road making material is 6 mm, 10 mm, or 20 mm asphaltic concrete, the bitumen comprises at least 3.1% but no more than 4.09% by weight of the aggregate, bitumen, and plastics material mix; (c) when the road making material is hot rolled asphalt, the bitumen comprises at least 4.9% but no more than 5.89% by weight of the aggregate, bitumen, and plastics material mix; or (d) when the road making material is heavy duty 32 mm, the bitumen comprises at least 2.4% but no more than 3.39% by weight of the aggregate, bitumen, and plastics material mix.
Road making material, a method of producing a road making material and a road made therefrom
The present invention relates to a road making material comprising aggregate, bitumen, and a plastics material, wherein: (a) when the road making material is 10 mm stone mastic asphalt, the bitumen comprises at least 4.7% but no more than 5.69% by weight of the aggregate, bitumen, and plastics material mix; (b) when the road making material is 6 mm, 10 mm, or 20 mm asphaltic concrete, the bitumen comprises at least 3.1% but no more than 4.09% by weight of the aggregate, bitumen, and plastics material mix; (c) when the road making material is hot rolled asphalt, the bitumen comprises at least 4.9% but no more than 5.89% by weight of the aggregate, bitumen, and plastics material mix; or (d) when the road making material is heavy duty 32 mm, the bitumen comprises at least 2.4% but no more than 3.39% by weight of the aggregate, bitumen, and plastics material mix.
Reducing crumb rubber modified bitumen odors
A method for reducing odors including the steps of admixing active agents and a diluting agent to liquid crumb rubber modified bitumen, wherein the active agents comprise 20 to 60 wt.-% of an aldehyde selected from alpha-hexyl cinnamaldehyde, 2-(4-tert.-butylbenzyl) propionaldehyde, 2-benzylidenheptanal, or mixtures thereof, and 10 to 40 wt.-% of one or more alcohols having a boiling point of at least 150° C., calculated on the total weight of active agents. A crumb rubber modified bitumen composition as obtained by the method above. The use of a crumb rubber modified bitumen composition as obtained by the method above in road surfacing and road base materials, in insulating layers for buildings, in roofing materials and/or in sealing sheeting.