Adjustment of lightweight gypsum mortar according to water proportion
Lightweight gypsum mortar leveling is composed of lightweight aggregate, water reducing agent, water retaining agent, gypsum, retarder, fine sand, etc. in a certain proportion. The water addition rati…
[Shanghai white oil supply and procurement] Five classifications of white oil according to industry standards
White oil, also known as white mineral oil, is a highly refined mineral Oil. Colorless, tasteless, odorless, chemically inert and light-stable, with a basic molecular weight of 300-450. It is mainly c…
[Vaseline Supply] Vaseline is divided into four categories according to national standards
Vaseline is a semi-liquid mixture of alkanes or saturated hydrocarbons , also called petrolatum, is produced by fractionation of petroleum. Its state is between solid and liquid at normal temperature.…
For concrete structural projects constructed in winter, the amount of concrete antifreeze should be selected according to the type of concrete antifreeze.
① When using a single antifreeze component, the maximum amount of antifreeze should not be greater than the following regulations: the amount of chlorine salts should not be greater than 7% of the mix…
Concrete admixtures are classified according to chemical composition
(1) Inorganic admixtures: including various inorganic salts, some metal elements and a small amount of hydroxides. Such as calcium chloride and sodium sulfate in early strength agents, aluminum powder…
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