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Eliminate coffee waste, curtail sand extraction, and make concrete stronger? That's a win-win-win.
The ultimate strength of concrete is influenced by the water-cementitious ratio (w/cm), the design constituents, and the mixing, placement and curing methods employed.All things being equal, concrete with a lower water-cement (cementitious) ratio makes a stronger concrete than that with a higher ratio. [2]
Coffee grounds could be used as an ingredient to make concrete stronger and greener, according to researchers at RMIT University in Melbourne, Australia.
This cement can make concrete for floor slabs (up to 60 m square) without contraction joints. White blended cements may be made using white clinker (containing little or no iron) and white supplementary materials such as high-purity metakaolin. Colored cements serve decorative purposes. Some standards allow the addition of pigments to produce ...
A single concrete block, as used for construction. Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures to a solid over time. . Concrete is the second-most-used substance in the world after water, [1] and is the most widely used building material
New research shows that adding shrimp shells to cement makes it stronger and more environmentally friendly. How did we come up with this combo?
A good concrete must be therefore prepared with as little water as possible, but with enough water to hydrate the cement minerals and to properly handle it. A lower ratio leads to higher strength and durability, but may make the mix more difficult to work with and form.
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