Ht-225A Concrete Test Hammer Rebound Hammer
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Ms. Jennifer Hu(Mr.)
Rm. 1407, Mingcheng International Building, No. 46 Renmin Road(E), Changsha, Hunan, China 410007
HT-225 A concrete test hammer is used for testing the strength of concrete. When testing the strength of concrete, the concrete test hammer uses a certain elastic force to transit the impact force of an impact hammer to the surface of concrete, its initial kinetic energy redistributes, a part of energy in the form of plastic deformation or residual deformation is adsorbed by the concrete, and another part of energy which is proportional to the surface hardness is transmitted to the impact hammer, making the hammer resile to a certain height, then the strength of the concrete is derived from the proportional relation between the height of resilience and the concrete strength. With the merits of simple structure, easy correction, maintenance and repair, and portability, the concrete test hammer is widely used in civil engineering and construction industry for testing the strength of concrete. Compared to other nodestructive testers, the concrete test hammer is an economical and practical nondestructive testing instrument.
HT-225A is used for testing the strength of various concrete members (slab, beam, column, truss) of normal building strength and bridge.
|Nominal kinetic energy||2.207J(0.225kgf. m)|
|Flip tension spring rigidity||7.84N (0.80kgf)/cm|
|Punch advance for impact hammer||75mm|
|Impact surface hardness value between impact hammer and rod||HRC59-63|
|Maximum breakout friction of pointer system||0.49-0.78N(50-80g)|
|Mean-value of steel-anvil rating of concrete test hammer||80+/-2|
|Standards||ISO/DIS 8045, EN 12504-2, ENV 206, DIN 1048 part 2, ASTM C 805, ASTM D 5873, NFP 18-417, B 15-225, JGJ/T 23-2001, JJG 817-1993|
Sino Age Development Technology, Ltd.(SADT), established in 1993, is a leading manufacturer/supplier of measuring and testing instrument, specialized in NDT and quality control fields. We have our own HARTIP series portable hardness testers since 1995. Now our main products cover portable and bench type hardness tester, ultrasonic thickness gauge, roughness tester, handheld metallurgical microscope, portable vibration meter, optical tachometer, ultrasonic flaw detector and so on. Our main overseas markets are: Italy, Germany, Netherlands, Turkey, France, Cezch Republic, Korea, Singapore, India, Iran, South Africa, USA, Canada, Mexico and Columbia and etc. All Products supplied by SADT have excellent quality and competitive price with our best service.