Roof Concrete Mix Ratio

Rounded off it s basically a 1.

Roof concrete mix ratio.

Never ever add excess water to mix concrete. Structure carries in heavy loads. To make ease in understanding we are finding the concrete mix design of m20 grade concrete. Of 50 kg bag of cement 0 42 m 3 of sand and 0 83 m 3 of stone aggregate.

The mix ratio of 1 2 3 consists of 1 part cement 2 parts sand and 3 parts stone plus some water to make a concrete mix you can use for most any building project. The concrete mix ratio for m20 grade of concrete is 1 1 5 3 that mean 1 part of cement 1 5 part of sand fine aggregate and 3 parts of aggregate crushed stone in volume and then batched for mixing. Concrete mix ratio compressive strength is the most important property of hardened concrete. If i break the weights down per cubic yard of concrete it comes to.

It can be measured easily on standard sized cube 15 cm and is often taken as an index of the overall quality of concrete. In case of single or two story house the ration of concrete mix will be 1 2 4. 2 concrete mix ratio. When we take concrete mix in a plate it should become like a scoop.

This ratio of concrete also gives very high strength of cement concrete and is recommended for following works. 2 26 parts stone 1 73 parts sand. 702 5 pounds of cement. Size of aggregates mm water for dry aggregates liter water for aggregates condition from dry to moist batch liter water for best consistency liter small precast work fence posts poles garden furniture and other work of very thin sections.

1217 pounds of sand. This gives you a basic 4500 psi concrete mix ratio of. This type of mix makes the roof slab strong. Where cement concrete 1 1 5 3 is used.

Water cement ratio theory states that for a given combination of materials and as long as workable consistency is obtained the strength of concrete at a given age depends on the w c ratio. Example calculation estimate the quantity of cement sand and stone aggregate required for 1 cubic meter of 1 2 4 concrete mix. 1587 pounds of stone. Materials required are 7 nos.

It means 1 part of cement 1 5 part of fine aggregate coarse sand and 3 parts of coarse aggregate. To know the concrete mix design follow below. The correct proportion of water should be like this. The lower the w c ratio the higher the concrete strength.