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Showing posts with the label concrete testing

Slump Test Apparatus

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Slump Test Apparatus: The slump test measures the consistency of new bond before it sets. It is performed to check the helpfulness of freshly made bond, and in like manner the effortlessness with which strong stream. It can likewise be utilized as a marker of a dishonorably blended cluster. The test is well known because of the straightforwardness of device utilized and basic methodology. The slump test is utilized to guarantee consistency for various heaps of cement under field conditions. A different test, known as the stream table, or slump stream, test, is utilized for solid that is excessively liquid (functional) to be estimated utilizing the standard slump test, in light of the fact that the solid won't hold its shape when the cone is expelled. Technique:  The instrument commonly has an inside distance across of 100 millimeters (3.9 in) at the best and of 200 millimeters (7.9 in) at the base with a stature of 305 millimeters (12.0 in).The cone is set on a hard non...

Lab. Concrete Mixer (HAND OPERATED):

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Lab Concrete Mixer (HAND OPERATED): The Laboratory Concrete Mixer is utilized for getting ready Mix Design of Concrete. Introduction of Concrete Mixer: A concrete mixer (frequently erroneously called a cement mixer) is an instrument that homogeneously joins concrete, total, for example, sand or rock, and water to frame concrete. A run of the mill solid blender utilizes a spinning drum to blend the parts. For littler volume works convenient solid blenders are regularly utilized so that the solid can be made at the development site, giving the specialists sufficient time to utilize the solid before it solidifies. A contrasting option to a machine is blending concrete by hand. This is generally done in a wheelbarrow; be that as it may, a few organizations have as of late sold changed canvases for this reason. The concrete mixer was created by Columbus, Ohio industrialist Gebhardt Jaeger. Onsite and portable concrete mixers: For littler employments, for example, private rep...

Consolidation appartus and its types

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consolidation appartus and its types: consolidation of clay deposit prompts trouble in structures, for example, splits and disappointments. Consolidation is reduction of volume of soil because of ejection of water from its pore space caused by supported stacking. This wonder is time subordinate. The one dimensional consolidation test performed on an undisturbed example of dirt is helpful for understanding the historical backdrop of the dirt store. The test outcomes can be utilized for ascertaining the settlement of structures based on clayey soil. consolidation test is uni-dimensional test considered critical in soil mechanics. Test taken from contiguous territories of a solitary site indicate differential settlement notwithstanding when tried utilizing same methods. Soil of comparable quality may demonstrate shifting combination. Tests are painstakingly arranged and vertical settlement of the example in soaked or depleted conditions deliberately recorded when known load is connec...

Ultrasonic Pulse Velocity Test appartus

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Ultrasonic pulse velocity test: An ultrasonic pulse velocity test is an in-situ, nondestructive test to check the quality of concrete and natural rocks. In this test, the strength and quality of concrete or rock is assessed by measuring the velocity of an ultrasonic pulse passing through a concrete structure or natural rock formation. This test is conducted by passing a pulse of ultrasonic wave through concrete to be tested and measuring the time taken by pulse to get through the structure. Higher velocities indicate good quality and continuity of the material, while slower velocities may indicate concrete with many cracks or voids. Technical Specifications: Temporal measure resolution: 83 nS - filter passing band:20-80KHz - amplificator gain :50dB - minimum level of the trigger signal: 208 Mv 2 TX / RX channels, - contact probes, freq. 55 KHz - data saving on internal memory, - 3" display to visualize the time of fly (T.O.F.) and the speed of waves transmissi...