Asphalt expansion vermiculite process and material requirements
Raw materials, mix ratio and technical performance. Raw materials, cement and expanded vermiculite, cement should be no less than 325, general choice of 425 ordinary Portland cement. The volume ratio of cement and expanded vermiculite is generally 1:5, which is economical and reasonable. Cement and sand aspect than the general 1:1. Site inspection method: mix the cement paste with fine powder and knead it by hand.
Asphalt expanded vermiculite products are made of expanded vermiculite and hot asphalt by mixing, pouring, molding and pressing.
1, the use of artificial mixing, it is not appropriate to use mechanical agitation, you can first quantitative cement and vermiculite dry mixing evenly, pour a proper amount of water, mixing evenly.2, due to the expansion of vermiculite absorbent faster, construction is best to transport raw materials to the laying site, with mixing shop, in order to ensure accurate water and sand, to ensure the quality of the project.3, heat insulation layer of virtual thickness, generally for the design thickness of 130% (not including leveling layer), paving with wood solid to the design thickness.
