Attentions during fly ash AAC block production

Henan Ruiguang Mechanical & Science Technology Co.,Ltd  is  manufacturer of aerated concrete block equipment , aerated brick equipment , fly ash aerated block equipment , autoclaved aerated concrete equipment. Fly ash aerated concrete block made from slurry of fly ash and lime , gypsum , water and aerated agent , by mechanical agitation , made ​​of a porous conservation , light , thermal insulation of concrete materials. With less investment, production process is simple , convenient construction operation.
 

   With the rapid development of power industry , has brought a sharp increase in fly ash emissions , coal-fired power plant fly ash of total annual emissions increased year by year , the current fly ash have been tested , its physical and chemical properties can be completely used for the production of aerated concrete standard bricks and fly ash bricks of new wall materials standards . Accelerate the development of  fly ash aerated equipment industry , and a few questions on this piece of equipment in the production of aerated fly ash aerated block should be noted :
 

1, note that water-cement ratio settings. Because only be determined after the sixth component of fly ash as a concrete added to the basis of theoretical calculations , based on trial and error .
 

2 , the implementation of secondary mixing new technology, that is dry after mixing with water stirring 1min 2min ~ 3min.
 

3, note shape, fabric, vibration level adjustment device parameters , once determined , do not easily change , otherwise it will affect the quality of the products.
 

4 , try to control the height of the molding at 115 +2 or 115-4 ( standard 115 ± 4), if we take 115 +4 , 240mm masonry wall without mortar joints at all , it will affect the strength of the building, can not be completely the implementation of " fly ash bricks " JC239-2001 standard .
 

5 , if you use wood pallets, wood pallets to make sure the surface remains flat , otherwise standard brick on the same wooden pallets , height errors.
 

6 , During  steam curing , note the change of seasons , timely adjustment of quiet time to stop , steam temperature , cooling rate and other parameters of conservation , there would be the product surface cracking phenomenon.
 

7 , the product was finished after steaming keep on pouring water after going to the yard , must be irrigated . Because the intensity and pressure steam curing at low temperatures only reach about 70 % growth in the late strength of fly ash concrete needs moisture.