Quality Basing on Mixing Method
- Crushing Screening Plants
- Sep 26, 2019
- 2 min read
One of the most important fact that makesthe ready mix concrete different from manual mixing is that it speedsup the entire construction process as it doesn't take the time ormanpower to mix concrete on site. Rather than wasting time over perfecting a concrete mixture, ready mix concrete can be made to orderaccording to any recipe, including specialty concretes, within hours.Single batching plants in a central location can easily serve a wide areaof commercial, industrial and residential zones, saving time onconstruction projects .

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Durability is the ability to last a long time withoutsignificant deterioration. A durable material helps the environment byconserving resources and reducing wastes and the environmental impacts ofrepair and replacement. Construction and demolition waste contribute tosolid waste going to landfills. The production of new building materialsdepletes natural resources and can produce air and water pollution. In ready mix concrete, using of different admixture, appropriate material raio &appropriate compactness assured the durability of any structure
Concrete is not damaged by water; concrete that does not dry out continues to gain strength in the presence of moisture.That is why the proper ratio of all the ingredients should be maintained forproduction of concrete. Concrete submerged in water absorbs very smallamounts of water over long periods of time, and the concrete is not damaged.In flood-damaged areas, concrete buildings are often salvageable. Concretedams and levees are used for long-lasting flood control. But if the bindingmaterials are not mixed properly with the coarse and fine aggregate the waterresistance capability of the concrete goes off. So ready mix concrete alwaysmakes an way to reach the concrete in the required place and resisting flood.
Retarders are admixtures that cause a decrease in therate of cement hydration and lengthen the time of setting. Retarders removethe tendency of some cement to exhibit false set and counter the acceleratingeffect of high temperatures. They improve the workability and thefinishability in hot weather and increase the transporting distance of the ready mixed concrete. Retarders help to reduce the possibility of early dryshrink cracking and reduce the maximum temperature rise in massconcreting, by extending the heat-dissipation period
An air-entraining agent is a liquidchemical admixture used to create bubbles that will provide adequate freeze-thaw protection in concrete by generating 5 to 7 percent of the volume withair of properly sized and properly spaced bubbles. Air entraining admixturesare surfactants, soaps or detergents, primarily used to generate microscopicsize bubbles that render hardened concrete resistant to the effects of freezingand thawing. It is also used to improve the workability placeability of freshconcrete
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