Main detection performance of light calcium and its test method

Light calcium, also known as light clinker, is a lightweight aggregate material, the main components of which are calcium oxide and silicon oxide. It is often used in the production of lightweight concrete, lightweight bricks, lightweight panels and other building materials. Compared with traditional heavy calcium clinker, light calcium has the advantages of low density, good thermal insulation performance, low water absorption, high strength, etc., and has important application value in building energy saving and environmental protection.

Detection performance

performanceTest items
chemical compositionMain ingredients, content, impurities
ExteriorAppearance, color, shape
densityDry density, saturated dry density, apparent density
Compressive strengthcompressive strength, compressive strength
thermal performanceCoefficient of thermal expansion, thermal conductivity, thermal stability
water absorptionWater absorption, saturated water absorption, moisture diffusion coefficient
acoustic performanceSound absorption performance, sound insulation performance
DurabilityFreeze resistance, weather resistance, sulfate corrosion resistance
Environmental protectionInorganic matter content, radioactive element content, harmful element content
Process performanceMixing uniformity, fluidity, setting time, vibration degree

Detection method

The following are some commonly used light calcium detection methods:

  • Chemical composition: The main composition, content and impurities of light calcium are detected by X-ray fluorescence spectroscopy, chemical analysis and other methods.

  • Appearance: Observe the appearance, color and shape of the sample through visual inspection and microscope.

  • Density: by measuring the dry density, saturated dry density and apparent density of the sample.

  • Compressive strength: The compressive strength and compressive strength of the sample are tested by methods such as compression test and compression test.

  • Thermal properties: The thermal properties of the samples are tested by methods such as thermal expansion coefficient test, thermal conductivity test and thermal stability test.

  • Water absorption performance: The water absorption performance of the sample is tested by methods such as water absorption test, saturated water absorption test and water diffusion coefficient test.

  • Acoustic performance: The sound absorption performance and sound insulation performance of the sample are tested by methods such as sound absorption test and sound insulation test.

  • Durability: The durability of the samples is tested by methods such as frost resistance test, weather resistance test and sulfate corrosion resistance test.

  • Environmental protection: The environmental protection performance of the samples is tested by methods such as inorganic substance content test, radioactive element content test and harmful element content test.

  • Technological performance: The technological performance of the sample is tested by methods such as mixing uniformity test, fluidity test, coagulation time test and vibration test.

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