1 Note cement and water ratio settings. Because the fly ash in concrete components are added on theoretical calculations , based on the determined only after repeated tests .
(2) the implementation of secondary mixing new technology, that is dry mixng in the first 1 minute ,and then add water and stir stirring 2min ~ 3min.
3 Note molding equipment , fabrics, vibration level adjustment of parameters , once determined, do not easily change , otherwise it will affect the quality of products .
4 try to control the height of the molding at 115 or 115 a 4 +2 ( standard is 115 ± 4 ) , if we take 115 +4 , 240m masonry walls without mortar joints at all time , will shadow
Impact strength of the building , is not fully enforceable , " fly ash bricks " JC239 a 2001 standard .
5 If using wooden pallets, wooden pallets to make sure the surface remains flat , otherwise the same standard bricks on wooden pallets , height errors.
6 In steam curing , note the change of seasons , timely adjustment of static curing time , steam temperature , cooling rate and other parameters of conservation , there would be produced
Product surface cracking phenomenon.
7 After the product has been placed on the finished steam curing yard after pouring water , must be irrigated . Because low pressure steam curing time can only reach 70% of the intensity of the left
Right , late strength of fly ash concrete growth requires moisture.
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