Dry Lean Concrete Mix Proportions

1 22 2014 6 basic concrete mix design materials pounds of material s g.

Dry lean concrete mix proportions.

Concrete mix ratios are the proportions of concrete components such as cement sand aggregates and water. The mix design for dlc is not similar to the conventional concrete mix. Target average flexural strength for all a b and c mixes s s j a o 4 5 1 65 x 0 5 5 3 n mm 2 at 28 days age. Dlc or dry lean concrete is cement concrete with low slump value to be laid for rigid pavement over sub base and rolled compacted by mechanical means.

This is lower than specified maximum w c ratio value of 0 50. The mix shall be proportioned with a maximum aggregate cement ratio of 15. Dry lean semi dry mix cement bound material consisting of cement 4 20mm stone graded sand and minimal water. The less water you use to mix the concrete somewhat dry but workable the stronger the concrete mix.

1 curve d figure shown in the end found to be 0 42. The concrete mix proportions i e. These mix ratios are decided based on type of construction and mix designs. Accurate concrete mixing ratios can be achieved by measuring the dry materials using buckets or some other kind of measuring device.

Abs volume 667 3 15 x 62 4 cement 667 3 15 3 39 total cementious 667 miller stone 1590 2 6 9 80. Unlike conventional concrete mixes the water to cement ratio is not the criteria for dlc mix design but it is the optimum moisture content omc to ensure full compaction of concrete under rolling. The numbers denote the ratio of all in stone and sand. Dry lean concrete is an important part of the modern rigid floor.

Aggregate to cement ratio and moisture content for the dlc to be manufactured with ppc so that the requirement. Extra dry lean concrete is. By measuring the cement stone and sand you will have a consistent concrete mix throughout your entire project. For mix a and b free w c ratio with crushed aggregate and required average flexural target strength of 5 3 n mm 2 at 28 days from fig.

The current practices of the construction of cement concrete road for highways in india require a layer of dry lean concrete dlc as a base course over which pavement quality concrete slabs rest. Mix proportion of dry lean concrete. However building codes provides nominal and standard concrete mix ratios for various construction works based on experience and testing.