top of page

Dicas para fazer pedidos

Quantidade

Ao encontrar a quantidade de concreto que você precisa, as medidas nem sempre são exatas, por isso recomendamos que nossos clientes peçam um pouco mais. Uma boa regra prática é fazer o seu cálculo e adicionar qualquer valor entre 5-10% do total para contabilizar desperdício, derramamento, escavação excessiva, assentamento, perda de ar aprisionado e outras alterações no volume. Lembre-se, você pode pedir concreto em incrementos de meio metro.

Queda

Slump é uma medida da consistência do concreto. Uma queda de 4 polegadas é ideal. Lembre-se de que adicionar um galão de água por metro cúbico pode diminuir a resistência à compressão do concreto em 150-200 psi, resíduos de cimento e aumentar a retração em 10%. Isso pode ser problemático para quem despeja em condições de congelamento/descongelamento.

Força

Strength is most commonly measured by the designed compressive strength in pounds per square inch (PSI) of a hardened cylinder of concrete. Any slab exposed to freeze thaw conditions should be a minimum of 4000psi. Estate concrete offers 3500, 4000, 4500, and 5000 psi concrete.

Concrete Washout

You will need to provide a contained area for trucks to washout. This area would not allow fluids to seep into surrounding areas. We have portable washout boxes available for a fee. inquire with dispatcher.

Air entrained concrete

Air-entraining admixtures facilitate the development of a system of microscopic air bubbles within concrete during mixing. They increase the freeze-thaw durability of concrete. We recommend you order air entrained concrete when pouring in freezing/thaw conditions, or for concrete exposed to weather.

Non-Air entrained concrete

Air entrained admixtures should not be used on floors when attempting to achieve a dense and smooth surface.

Non air entrained concrete is ideal for interior work, and for hard troweled finishes.

Admixtures

Sika 440

Sika 440 is a hydration controlling admixture this allows the concrete to stabilize for long periods without affecting the concretes durability.

Fiber

Fiber reduces crack growth and increase the impact strength. Fiber-reinforced concrete improves resistance against freezing and thawing.

Sika Air-160

Air-entraining facilitate the development of air bubbles within concrete during mixing. It increase the freeze-thaw durability of concrete, increase resistance and improve workability.

Accelerator

Accelerator makes concrete set faster by increasing the rate of hydration also they promote strength development so it happens earlier in the set time of a slab.

Calcium 

Calcium produces an accelerated rate of hydration in cement while also warming the concrete mixture and allows workability of placement in cold weather.

bottom of page