What are the reasons that affect the quality of fly ash aerated concrete blocks


Release time:

2018-11-29

What is the reason that affects the quality of fly ash aerated concrete blocks? Date: October 15, 2011 14:17 The compactness of raw materials in the production of aerated concrete equipment. The compactness of fly ash refers to the ratio of its volume density to its density. The greater the compactness, the smaller the porosity, and the smaller the amount of water required in the preparation of the mixture slurry, that is to say, the concrete slurry can have a smaller water-to-material ratio, which can improve the strength of the product. Fineness, the reaction between fly ash and lime is mainly based on the dissolution of soluble substances on the surface of its particles and the formation of calcium silicate hydrate with calcium hydroxide, which has not yet participated in the reaction.

What are the reasons that affect the quality of fly ash aerated concrete blocks

Date:October 15, 2011 14:17
 
The compactness of raw materials in the production of aerated concrete equipment, the compactness of fly ash refers to the ratio of its bulk density and density. The greater the compactness, the smaller the porosity, and the smaller the amount of water required in the preparation of the mixture slurry, that is to say, the concrete slurry can have a smaller water-to-material ratio, which can improve the strength of the product. Fineness, the reaction of fly ash and lime mainly depends on the dissolution of soluble substances on the surface of its particles and calcium hydroxide to generate calcium silicate hydrate, thus bonding the residual nuclei of fly ash that have not yet participated in the reaction to form a whole and have a certain strength. The finer the fly ash, the larger the surface area, the more contact surface with lime, the more fully the reaction, the more hydration products, and therefore, the faster and higher the strength of the product. However, infinitely increasing the fineness of fly ash will make the unreacted residual core too small, resulting in a poor stroke skeleton structure inside the product, which will affect the strength of the product, and will increase the water demand too much, thus increasing the shrinkage of the product. The complete set of aerated concrete equipment produced by Shandong Qilu brick machine adopts domestic advanced somersault cutting technology, and the qualified rate of finished products is high. It is your ideal choice for investing in aerated concrete equipment.