TEST EQUIPMENT DETERMINING CONCRETE COMPRESSIVE STRENGTH CLASS

Abstract

This invention is test equipment for determining a concrete's compressive strength class and characteristic equivalent cube compressive strength value while the concrete is in its fresh concrete period.

Claims

1. A test equipment for determining a concrete's compressive strength class, which is characterized by concrete cabin and operating system cabin.

2. The concrete cabin of claim 1, wherein a chrome mobile cover with a minimum 2-mm internal wall (10) and silicon-based tubular joint ring (11).

3. The concrete cabin of claim 1, wherein the concrete cabin including heat insulation (15), water disposal system (16), water heater resistance (17), water precipitation apparatus (18), steel spiral hose (19), water balance and disposal system (20), water tank (21), water tank transporter cantilevers (22), fresh concrete bucket (23), rubber wheels (24), testing set transporter and routing levers (25), fresh concrete bucket transporter and holding shanks (26), chrome bath (27), and balance (28) parts.

4. The concrete cabin of claim 1, wherein the LCD result screen (9), data entry control keyboard (8), PLC controller power button (7), energy power button (5), fresh concrete thermometer entry/exit point (1), electrical resistivity meter entry/exit point (2), heat treatment J-type thermocouple entry/exit point (4), contactor (31), system operational lighting (32), microprocessor card-PLC (33), empirical equation (34), power pack transducer (35), temperature sensor (36) and electrical resistivity sensor (37).

5. The microprocessor card-PLC (33) of claim 4, including the empirical equation conducting calculations to determine the concrete's compressive strength class.

6. The water tank (21) of claim 3, wherein the water tank (21) includes heat insulation (15) between itself and the storage-maintain case (30).

7. The water tank (21) of claim 3, wherein the water tank (21) includes the water precipitation apparatus for internal disposal (18).

8. The water precipitation apparatus (18) of claim 7, wherein the water precipitation apparatus (18) includes a steel spiral hose (19), water disposal system (16), and water balance and disposal system (20).

9. A method of working principle of the test equipment for determining a concrete's compressive strength class, the method comprises: Take a sample of at least 10 dm3 volume of fresh concrete, Move the equipment on a smooth surface by rubber wheels (24) and testing set transporter and routing levers (25) and immobilize the equipment by locking its wheel stoppers, Supply electrical energy to the test equipment by the power pack entry (29), Pour the concrete, whose compressive strength class will be determined by the test equipment, first into the fresh concrete bucket (23) in three equal stages, Place every stage by fogging 25 times, Strip excess concrete from the fresh concrete bucket and clean mortar from the bucket's exterior surface, Weigh on the balance (28), Calculate the unit weight (density) based on the laws and regulations of the region in which the concrete will be used, Process the calculated unit weight automatically or manually into the empirical equation (34) in the microprocessor card (33) inside the operating system cabin by the data entry control keyboard (8), Close the water disposal system (16), Fill 25 liters of drinkable water into the fresh concrete bucket (23), Place the concrete bucket (23) properly filled with fresh concrete by the concrete bucket transporter and holding shanks (26) when the concrete cabin (21) is full of water, Remove excess water above 25 liters inside the concrete cabin (21) by the water balance and disposal system (20), Add additional water into the concrete cabin taking care the amount is exactly 25 liters, Close the concrete cabin cover (10, 11) by closing the chrome handle (39), Embed the electrical resistivity chrome measurement probes (2, 3, 12, 40, 41, 42, 44) into the fresh concrete through the measurement holes (38) on the chrome cover (which as a minimum 2-mm internal wall (10)) by twisting widely and slowly, Embed fresh concrete thermometer probes (1, 14, 40, 41, 42, 43, 44) into the fresh concrete through the measurement holes (38) on the chrome cover (which as a minimum 2-mm internal wall (10)) by twisting widely and slowly, Take down the J-type thermocouple probes (4, 13, 40, 41, 42, 45) inside the water tank (21) through the measurement holes (38) on the chrome cover (which as a minimum 2-mm internal wall (10)) to control and monitor the temperature change inside the concrete cabin, Open the first energy power circuit button (5) and then PLC controller power button (7), Include automatic operational-process lighting (32) into the circuit, Supply energy to two vertical opposing water heater resistances (17) placed into the energy power circuit (5) and water tank (21), In a controlled manner raise the temperature of the water inside the water tank (21) to 40±2° C. in 10 minutes through the digital heat control equipment (6), Send temperature and electrical resistivity values at 15, 20 and 25 minutes to the LCD result screen (9) through the probes inside the fresh concrete (12, 14) by operating the system synchronously via the data entry control keyboard (8), In micro-processor card (33) characterize with processing these results in the empirical equation (34); the result shows on LCD result screen (9) the possible compressive strength class of the fresh concrete once the concrete has achieved its in hardened condition

Description

MEANINGS OF THE FIGURES

[0041] FIG. 1. Frontal View of the Test Equipment

[0042] FIG. 2. Cross-section view of the concrete cabin cover

[0043] FIG. 3. Top view of the test equipment (cover closed)

[0044] FIG. 4. Top view of the test equipment (cover open)

[0045] FIG. 5. Side view of the test equipment

[0046] The equivalents of the part numbers stated on the figures are given below [0047] 1. Fresh Concrete Thermometer Entry/Exit Point [0048] 2. Electrical Resistivity Meter (+) Entry/Exit Point [0049] 3. Electrical Resistivity Meter (−) Entry/Exit Point [0050] 4. Heat Treatment J-Type Thermocouple Entry/Exit Point [0051] 5. Energy Power Button [0052] 6. Digital Heat Control Equipment [0053] 7. PLC Controller Power Button [0054] 8. Data Entry Control Keyboard [0055] 9. LCD Result Screen [0056] 10. Chrome Cover [0057] 11. Silicon-based Tubular Joint Ring [0058] 12. Electrical Resistivity Chrome Measure Probes and Hoses [0059] 13. J-Type Thermocouple Probe and Hose [0060] 14. Fresh Concrete Thermometer Probe and Hose [0061] 15. Heat Insulation [0062] 16. Water Disposal System [0063] 17. Water Heater Resistance [0064] 18. Water Precipitation Point/Fixture [0065] 19. Steel Spiral Hose [0066] 20. Water Balance and Disposal System [0067] 21. Water Tank [0068] 22. Water Tank Transporter Cantilevers [0069] 23. Fresh Concrete Bucket [0070] 24. Rubber Wheels [0071] 25. Testing Set Transporter and Routing Levers [0072] 26. Fresh Concrete Bucket Transporter and Holding Shanks [0073] 27. Chrome Bath [0074] 28. Balance [0075] 29. Electrical Energy-Power Pack [0076] 30. System Storage-Maintain Case [0077] 31. Contactor [0078] 32. System Operational Lighting [0079] 33. Microprocessor Card-PLC [0080] 34. Empirical Equation [0081] 35. Power Pack Transducer [0082] 36. Temperature Sensor [0083] 37. Electrical Resistivity Sensor [0084] 38. Anchored Chrome Pipes for protecting Probe-Measure Members [0085] 39. Cover Opening/Closing Chrome Handle [0086] 40. Plastic Insulation Sheath and Hose [0087] 41. Rubber Joint Ring [0088] 42. Measure Cable Threaded Joint Apparatus [0089] 43. Concrete Thermometer Cable [0090] 44. Electrical Resistivity Meter Cable [0091] 45. Heat Treatment Thermometer Cable [0092] 46. Operating System Cabin Cap

DETAILED DESCRIPTION OF THE INVENTION

[0093] The invention includes a fresh concrete thermometer entry/exit point (1), electrical resistivity meter (+) entry/exit point (2), electrical resistivity meter (−) entry/exit point (3), heat treatment J-type thermocouple entry/exit point (4), energy power button (5), digital heat control equipment (6), PLC controller power button (7), data entry control keyboard (8), LCD result screen (9), chrome cover (10), silicon-based tubular joint ring (11), electrical resistivity chrome measure probes and hoses (12), J-type thermocouple probe and hose (13), fresh concrete thermometer probe and hose (14), heat insulation (15), water disposal system (16), water heater resistance (17), water precipitation point/fixture (18), steel spiral hose (19), water balance and disposal system (20), water tank (21), water tank transporter cantilevers (22), fresh concrete bucket (23), rubber wheels (24), testing set transporter and routing levers (25), fresh concrete bucket transporter and holding shanks (26), chrome bath (27), balance (28), electrical energy-power pack (29), system storage-maintain case (30), contactor (31), system operational lighting (32), microprocessor card-PLC (33), empirical equation (34), power pack transducer (35), temperature sensor (36), electrical resistivity sensor (37), anchored chrome pipes for protecting probe-measure members (38), cover opening/closing chrome handle (39), plastic insulation sheath and hose (40), rubber joint ring (41), measure cable threaded joint apparatus (42), concrete thermometer cable (43), electrical resistivity meter cable (44), heat treatment thermometer cable (45), and operating system cabin cap (46) parts.

[0094] Determination of concrete's compressive strength and class by current systems and approaches is very long process taking 28 days. Moreover it causes sophisticated and serious problems. Determining with high accuracy of fresh concrete's compressive strength and class in 30 minutes before molding via the test equipment of our invention will make major contributions to control and inspection and be helpful to related parties. Buildings will be made earthquake-resistant and livable by preventing the use of low-strength concretes.

[0095] This invention includes the test equipment for determining within the first 30 minutes of the plastic consistency stage the concrete's compressive strength class and characteristic equivalent cube compressive strength value otherwise obtained after 28 days.

[0096] Determination of concretes' compressive strength and class in the fresh concrete stage will contribute to local governments actively participating in the construction sector as well as to building audit companies. One of the most significant subjects that people working in the control aspect of the construction sector commonly encounter is the concern whether the concrete will achieve desired compressive strength and class (project aim). This concern, mostly occurring between control members and producing companies, will be completely relieved. Moreover, the equipment use will form a basis for achieving ready-mixed concretes' compressive strength as specified in the project aim. Consequently, buildings should be strengthened. Moreover, it is hoped that questions of law occurring during the use of concretes not satisfying desired strength will be eliminated. Not only will waiting time be reduced from a month to 30 minutes, but also the use of low-strength concretes will be prevented.

[0097] Producing the concrete used in reinforced-concrete applications, which is the constituent of many buildings' undercarriage, in accordance with high quality and compressive strength class is of vital importance to our country, the majority of which is in the seismic belt. Accordingly, information about concrete materials has been increasing; as a result, aggregates, anchors, additives, and concrete construction, casting, and protection requirements have to satisfy minimum standards.

[0098] The invention's test equipment is created by two main parts: the “Concrete cabin” and the “Operating system cabin.” The concrete cabin has a chrome mobile cover (10) with a minimum 2-mm internal wall and a silicon-based tubular joint ring (11). The operating system, on the other hand, has a cap screwed from the back (46).

[0099] There are also an LCD result screen (9), data entry control keyboard (8), digital heat control equipment (6), PLC controller power button (7), energy power button (5), fresh concrete thermometer entry/exit point (1), electrical resistivity meter entry/exit point (2), heat treatment J-type thermocouple entry/exit point (4), system operational lighting (32) and contactor control key (31) on the front of the operating system.

[0100] There are a trowel, rodding apparatus, grading apparatus, molding and cleaning members to be used during the experiment, chrome bath (27) for protection, and weighing machine (28) on the top of the operating system.

[0101] There are a microprocessor card-PLC (33), empirical equation (34), power pack transducer (35), temperature sensor (36), electrical resistivity sensor (37), and power pack contactor (31) inside the operating system cabin.

[0102] There are water-tight chrome tank, two vertical opposing water heater resistances, heat-insulated water tank, water precipitation and disposal part under the floor of the water tank's inner surface, fresh concrete steel bucket and chrome hangings mechanics inside the concrete cabin.

[0103] There are a water disposal-relief valve connected with the water tank and water balance and disposal system in the same horizontal level with the concrete bucket on the front and lower part of the concrete cabin.

[0104] There are transporter and routing levers and apparatus on the left and right side of the concrete cabin.

[0105] There is an air-sealed and 5-cm-thick cover made up of chrome on the upper portion of the concrete cabin. There are four measurement points and two opening/closing handles on the cover. All measurement points were made up of chrome pipe. Measurement points in a triangle shape are positioned at a 5-cm distance in the middle of the cover. Another measurement point at the back of the cover is for a heat treatment temperature probe while measurement points in the middle are for fresh concrete temperature and electrical resistivity probes. Length of measurement probe cable is between 50 and 70 cm and cables are passed through protection-cover hoses. Cables are set into particular insulated-hoses and there are particular insulation joint rings on the probe's ends. The electrical energy power pack port is a grounding system and on the right-hand side.

[0106] The working principle of our test equipment can be explained as follows: At least 10 dm3 volume of fresh concrete is necessary for evaluating the concrete's compressive strength class. The test equipment with its testing set transporter and routing levers (25) rides on rubber wheels (24), and is meant to be on a smooth surface and should be immobilized by locking its wheel stoppers. There is heat insulation of no less than 10-mm thickness between the water tank (21) and system storage-maintain case (30). The water tank is an internal disposal water precipitation (18) system. The water precipitation system is connected to the water disposal system (16) and water balance and disposal system (20) through a steel spiral hose (19). There is a chrome bath (27) embedded on the operating system. Electrical energy is supplied by a power pack entry (29) to operate the equipment. The power pack is connected with contactor (31) and power pack transducer (35) inside the operating system cabin (29). There are a contactor (31), microprocessor card-PLC (33), empirical equation (34), power pack transducer (35), temperature sensor (36) and electrical resistivity sensor (37) intercorrelated with other inside the operating system cabin. The water tank (21) is connected to the system maintain case through the water tank transporter cantilevers (22).

[0107] The concrete, whose compressive strength class will be determined by the test equipment, is first poured into the fresh concrete bucket (23) in three equal stages. It is provided that every stage will be fogged at least 25 times. Excess concrete on the fresh concrete bucket is stripped, weighed on a balance (28) and its unit weight (density) is calculated based on the laws and regulations of the region in which the concrete will be used. The calculated unit weight is processed into an empirical equation (34) in the microprocessor card (33) inside the operating system cabin by the data entry control keyboard (8). After the water disposal system (16) is closed, 25 liters of drinkable water is poured into the fresh concrete bucket (23). When the concrete cabin (21) is full of water, the concrete bucket (23) filled with fresh concrete is properly placed by concrete bucket transporter and holding shanks (26). The excess water above 25 liters inside the concrete cabin (21) is removed by the water balance and disposal system (20). Additional water is added into the concrete cabin taking care to total 25 liters in the case of deficient water. The concrete cabin cover (10, 11) is closed by the cover-closing chrome handle (39).

[0108] The electrical resistivity chrome measurement probes (2, 3, 12, 40, 41, 42, 44) are embedded into the fresh concrete through measurement holes (38) in the chrome cover (having a minimum 2-mm internal wall (10)) by twisting widely and slowly. Later, this same operation is repeated for the fresh concrete thermometer probes (1, 14, 40, 41, 42, 43, 44). To control and monitor the temperature change inside the concrete cabin, J-type thermocouple probes (4, 13, 40, 41, 42, 45) are pushed down inside the water tank (21) through measurement holes (38) on the chrome cover, which as a minimum 2-mm internal wall (10).

[0109] The first energy power circuit (5) and then the PLC controller power buttons (7) are opened. The system operational-process lighting (32) is automatically included in the circuit. The temperature of the water inside the water tank (21) is meant to reach 40±2° C. in 10 minutes in a controlled manner through digital heat control equipment (6) by heating two vertical opposing water heater resistances (17) placed into the energy power circuit (5) and water tank (21). Temperature and electrical resistivity values at 15, 20 and 25 minutes are sent to the LCD result screen (9) through probes inside the fresh concrete (12, 14) by operating the system synchronously via the data entry control keyboard (8). These results are processed into the empirical equation (34) in the microprocessor card (33) and then the hardened condition possible compressive strength class that the fresh concrete can have is shown on the LCD result screen (9). The operation is ended.