Roof Concrete Mix Ratio
1217 pounds of sand.
Roof concrete mix ratio. This type of mix makes the roof slab strong. Where cement concrete 1 1 5 3 is used. If i break the weights down per cubic yard of concrete it comes to. 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.
Concrete mix ratio compressive strength is the most important property of hardened concrete. 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. 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. When we take concrete mix in a plate it should become like a scoop.
1587 pounds of stone. It means 1 part of cement 1 5 part of fine aggregate coarse sand and 3 parts of coarse aggregate. As long as you re consistent you ll get a good strong mix. 2 concrete mix ratio.
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. Example calculation estimate the quantity of cement sand and stone aggregate required for 1 cubic meter of 1 2 4 concrete mix. The way you measure the ratio could be in shovels buckets or wheel barrows. This gives you a basic 4500 psi concrete mix ratio of.
In case of single or two story house the ration of concrete mix will be 1 2 4. 2 26 parts stone 1 73 parts sand. Materials required are 7 nos. 702 5 pounds of cement.
This ratio of concrete also gives very high strength of cement concrete and is recommended for following works. Structure carries in heavy loads. Of 50 kg bag of cement 0 42 m 3 of sand and 0 83 m 3 of stone aggregate. To know the concrete mix design follow below.
To make ease in understanding we are finding the concrete mix design of m20 grade concrete. Labor guideline for steel bars in rcc. The lower the w c ratio the higher the concrete strength. The correct proportion of water should be like this.