Aggregate Testing Services in Delhi

10% Fine Value: All aggregates are required to meet a minimum strength valve, as defined by the 10% value test. This and other specifications ensure that only the highest quality materials are being used on construction projects. Test Method: IS: 2386 (P-4)1963 Alkali Aggregate Reactivity: Alkali-aggregate reaction is the term mainly referred to a reaction which occurs over time in concrete between the highly alkaline cement paste and non-crystalline silicon dioxide, which is found in many common aggregates. This reaction can cause expansion of the altered aggregate, leading to spalling and loss of strength of the concrete. Test Method: IS: 2386 (P-7) 1963 Chloride Content: The total chloride content of aggregate is usually measured to assess whether the aggregate’s contribution to the total chloride content of a concrete mix will be low enough to prevent the early onset of corrosion of any embedded steel reinforcement. Test Method: IS: 4032-1985 Clay Lumps and friable Particles: This test helps in determining the percentage of clay lumps and friable particles in aggregate. Clay lumps in aggregate shall be defined as any particles or aggregation of particles which when thoroughly wet can be distorted when squeezed between the thumb and forefinger, or will disintegrate into individual grain sizes when immersed for a short period in water. Friable particles are defined as particles which vary from the basic aggregate particles such, that they may either readily disintegrate under normal handling and mixing pressures, imposed upon them by construction procedures, or break down after being incorporated into the work. Test Method: IS: 2386 (P-2) 1963

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Aggregate Testing Service, Hollock Wood Testing Service

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