33 results about "Concrete slump test" patented technology

The invention discloses a concrete slump tester and relates to the technical field of engineering. The invention mainly aims at solving the problem of inaccuracy existing in an existing concrete slump test. A slump cylinder is arranged at a central position of a test platform and is connected with a square rod by virtue of a connecting rod; the slump cylinder can slide up and down and cannot swing from the left to the right, and a stable position is ensured. A rotating shaft with a hemisphere is arranged below the test platform and is driven to rotate by virtue of a motor. When the hemisphere rotates the lower part, the test platform drops on a base, and when the hemisphere rotates to the upper part, the platform can be lifted up so as to generate vibration, so that the slump cylinder is fully filled with concrete. The circular scale is marked as 0 at the height of the slump cylinder, millimeter marks are sequentially made downwards, a measuring rod can slide up and down, the slump cylinder slides upwards to be taken out, and after the concrete is stabilized, data can be directly read from the scale.

The invention relates to a photoelectric concrete slump tester. The photoelectric concrete slump tester comprises a slump cone and a soleplate, and is characterized by also comprising a lift bushing, wherein the inner diameter of the lift bushing is greater than the outer diameter of the slump cone, the inner surface of the lift bushing is provided with an infrared transmitter and an infrared receiver, the infrared transmitter and the infrared receiver stay on the same horizontal position, the outer surface of the lift bushing is provided with an infrared receiving prompting device, and the infrared receiving prompting device is connected with the infrared receiver; the outer surface of the lift bushing is provided with a section of outer thread which is connected with the inner thread of a base bushing in a matching manner; the base bushing is fixedly installed on the soleplate; the photoelectric concrete slump tester also comprises a vertical support rod, the support rod is arranged outside the base bushing, and the support rod is provided with scales for indicating the height vertically; the scales are provided with an infrared initial height mark corresponding to the initial position of the infrared transmitter and the initial position of the infrared receiver. By adopting the tester, the highest point of the slumped concrete can be accurately selected, and the detection accuracy can be improved.

The invention provides a 3D analysis method used for representing concrete surface washout characteristics, belongs to the field of representation of the concrete surface washout characteristics and solves the problem of lack of description of real 3D characteristics after concrete test pieces are washed out and damaged due to the fact that information of 2D planes is analyzed when the concrete surface washout characteristics are represented at present. The technical scheme is characterized in that a concrete test piece of a corresponding structure is selected, manufacturing, form stripping and maintenance of the concrete test piece are performed, and the maintained concrete test piece is pretreated after being maintained for set time; a concrete washout test of the pretreated concrete test piece is completed; 3D morphology feature parameters of concrete surfaces of the concrete test piece at each washout damage stage in the concrete washout test process are acquired; the 3D morphologyfeature parameters are corrected according to the selected structures of the concrete test piece; and the corrected 3D morphology feature parameters are used for representing the washout characteristics of the concrete test piece of the selected corresponding structure.

The invention is applicable to the technical field of building construction testing devices, and particularly relates to a concrete slump testing device for building construction. The device comprisesa measuring cylinder, and further comprises a lifting assembly, a base and leveling supporting legs. The upper end of the lifting assembly is connected with the measuring cylinder; the lower end of the lifting assembly is embedded into the base and used for driving the measuring cylinder to ascend and descend; the lifting assembly is provided with a height measuring assembly, the height measuringassembly is used for measuring the slump of a concrete sample, the leveling supporting legs are arranged at the bottom of the base and used for quickly leveling the base, and an ultrasonic vibrationplate is arranged at the position, under the measuring cylinder, of an inner cavity of the base. According to the concrete slump testing device for building construction provided by the embodiment ofthe invention, automatic stirring of a concrete sample can be realized, so that air in the concrete sample is exhausted, automatic measurement and recording can be further carried out, and the accuracy of a testing result and the testing efficiency are greatly improved.

The invention relates to the field of building construction devices, in particular to a concrete slump testing device for building construction. The concrete slump testing device includes: a mountingbase; a rack which is arranged above the mounting base; a horizontal adjusting mechanism which is arranged between the mounting base and the rack; a shaping device which is arranged on the rack, wherein the shaping device is fixedly connected with the rack, the input end of the shaping device is arranged at the upper end of the rack, and the working end of the shaping device is arranged in the rack; a vibration supporting plate which is horizontally arranged on the rack, wherein the vibration supporting plate is fixedly connected with the rack, and the working end of the vibration supporting plate is attached to the bottom of the shaping device; a measuring device, wherein the measuring device is arranged at the side part of the rack, and the measuring device is fixedly connected with therack; and a concrete pushing device which is arranged on the rack, wherein the concrete pushing device is fixedly connected with the rack, the working end of the concrete pushing device is arranged below the vibration supporting plate. Concrete slump data can be rapidly and accurately tested.

The invention relates to the technical field of concrete slump testing, in particular to intelligent concrete slump testing equipment and method, and provides the following scheme for solving the problem that in the prior art, a concrete slump testing device is large in personal error, the intelligent concrete slump testing equipment comprises a testing mechanism and a data processing mechanism. The testing mechanism comprises a placing plate, a slump barrel placed at the top of the placing plate and two supporting plates fixed at the top of the placing plate, the two supporting plates are both sleeved with lifting frames in a sliding mode, the slump barrel is located between the two supporting plates, and the two lifting frames are fixedly connected with the outer walls of the two sides of the slump barrel through connecting rods. The concrete slump testing equipment is reasonable in structure and easy to operate, the process of manually lifting the slump barrel and the process of measuring the height of concrete are replaced in the concrete slump testing process, errors generated by manual operation are reduced, and the concrete slump testing device is convenient and rapid to use, more accurate in testing data and easy to apply and popularize.

The invention discloses a centrifugal concrete slump testing device which comprises a centrifugal suspension slump cylinder, and the centrifugal suspension slump cylinder comprises a fork arm, a bracket, a concrete slump outer cylinder, a concrete slump inner cylinder, a connecting rod mechanism and a concrete slump bottom cylinder; the fork arm is connected with the bracket through a pin shaft I; the bracket is fixedly arranged on the outer wall of the concrete slump outer cylinder through a pin shaft II; a concrete slump bottom cylinder is arranged at the bottom of the concrete slump outer cylinder, and the concrete slump outer cylinder and the concrete slump bottom cylinder are of an integrated structure; a sliding groove is formed in the inner wall of the concrete slump outer cylinder, a sliding rail is arranged on the outer wall of the concrete slump inner cylinder, and the concrete slump outer cylinder and the concrete slump inner cylinder are in sliding fit. The spring bayonet lock is arranged at the connecting rod mechanism, the concrete slump inner cylinder is pre-fixed through the spring bayonet lock, and the viscosity data of the viscous concrete are compared by comparing the overflow amount of the viscous concrete with different components at the same rotating speed.

The invention discloses a concrete workability and uniformity testing device and method. The concrete workability and uniformity testing device comprises a supporting box, a screen is arranged at the top of the supporting box, a reelable piece is laid on the screen, a workability testing device is placed on the reelable piece, and a water supply tank is arranged on one side of the workability testing device; a uniformity testing device is arranged in the supporting box, the uniformity testing device is located below the workability testing device, and a vibration controller is arranged on the supporting box. According to the method, the workability and uniformity of the concrete are comprehensively represented by using the concrete slump and the concrete mortar density deviation, so that the quality of the on-site construction concrete can be better ensured; meanwhile, the concrete subjected to the concrete slump test is directly used for the concrete mortar density deviation test, so that raw materials are saved, and the detection rate is increased; the device is convenient to use, easy to operate, capable of improving per capita productivity and high in accuracy.

The invention provides a concrete slump test device which is designed for measuring the concrete slump on the construction site, and belongs to the field of building construction.The concrete slump test device is composed of a slump cone, a test platform, a test platform support, slump cone hanging ropes, a slump cone hanging arm, a stand column, a vernier, a fastening device, a trolley plate and wheels; the slump cone is hung on the slump cone hanging arm through the slump cone hanging ropes, and the test platform is installed on the trolley plate through the test platform support; the slump cone hanging arm is fixedly connected with the vernier and connected to the stand column in a sleeving mode through the vernier, and the vernier is fixed to the stand column through the fastening device; the stand column is perpendicularly installed on the trolley plate, and the wheels are installed on the lower portion of the trolley plate.The invention further discloses a using method of the concrete slump test device.The concrete slump test device and the using method have the advantages that concrete of a slump test can be completely recycled, and the concrete slump test device and the using method are standardized.