Roof Concrete Ratio

Cement 2810 pounds.

Roof concrete ratio.

This concrete batch ticked show you the ratio of how much cement stone and sand is used to make 4 5 cubic yards of 4000 psi concrete. It can be measured easily on standard sized cube 15 cm and is often taken as an index of the overall quality of concrete. Roof cement is primarily used to hold roof tiles hip tiles and ridge tiles securely in place it also keeps out rainwater. 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.

Exact specifications vary but most concrete roofs are several inches thick. This ratio of cement concrete gives high strength of cement concrete and is recommended for following works. Conventional slope roof range between 4 in 12 and 8 in 12. The lower the w c ratio the higher the concrete strength.

For general rcc work in buildings bed plates lintels rcc shelves pavement etc. To install such a roof a crew first builds a framework for the intended roof. The correct mix ratio is 3 parts sand to 1 part cement this is much stronger than bricklayers use 5 1 as the cement on the roof must withstand more driving rain than a typical brick wall. Compressive strength is the most important property of hardened concrete.

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. Where cement concrete 1 2 4 is used. A low slope roof is anywhere from 2 in 12 to 4 in 12. The actual weights used to make 4 5 yards of 4000 psi concrete are.

It means 1 part of cement 2 parts of fine aggregate coarse sand and 4 parts of coarse aggregate. The way you measure the ratio could be in shovels buckets or wheel barrows. 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.