Concrete mixing is uniform mixing and blending water, cement and aggregates. Simultaneously by stirring, material achieves reinforcement and plasticization role.
Concrete mixing time
?.concrete mixing time: Time from inputting all the materials such as sand, stone, cement and water to concrete mixer from the mixing tube to starting unloading .
?. Stirring time is closely related to the quality of the concrete mixing, varies with the type of stirrer and the workability of concrete.
Within a certain range, with the stirring time goes on, the strength increased, but over a long period of stirring neither economic, and the workability of concrete in turn reduced, affecting the quality of concrete.
?. Aerated concrete also stir too long leaving the gas content decreased.
3.Concrete mixer has low price and high efficiency
According to (GB8075-87) classification, concrete admixtures can be divided into four categories according to their main functions:
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