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The light burning powder manufacturers how to distinguish the merits of the lime powder

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The light burning powder manufacturers how to distinguish the merits of the lime powder

Date:2017-11-26 Author: Click:

The effective content of Magnesium Oxide manufacturers we usually say lime refers to calcium oxide contained in lime (CAO) and Magnesium Oxide (MGO) content, the strength of these two substances of two ash macadam plays a decisive role, especially the hydration reaction and fly ash, the amount of water the effect is more remarkable,

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  Add lime dose limits nature can improve two ash gravel strength, but it will increase the construction cost, and to improve the crack resistance of two ash macadam is also very unfavorable, therefore, should try to select the high effective content of lime, lime must meet the standard requirements are usually above two ash, namely content effective calcium and Magnesium Oxide in lime is not less than 80%, so as to meet the needs of two ash macadam oxidation and hydration process, ensure the basic strength, but also can improve the stability effect of the grass-roots level, does not affect the anti crack performance, is beneficial to ensure the basic quality. Lime digestion is an important link in the construction mixing, concrete construction to effectively control the process of digestion, lime is actually a CAO (MGO) hydration exothermic (H2O) reflect a process, to properly control the amount of water and water velocity, the slaking lime that is not too dry and the "dust", not too wet and "weak bond", the surface seems to be loose, the measured content of not more than 35%, in favor of two lime stone mixture mixing, the actual construction is usually adopted in advance to make digestion, stuffing, cover and sieving to meet the construction needs (advance digestion time is generally 7-10 days).

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