Dry Lean Concrete Mix Proportions

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.

Dry lean concrete mix proportions.

Accurate concrete mixing ratios can be achieved by measuring the dry materials using buckets or some other kind of measuring device. The numbers denote the ratio of all in stone and sand. Extra dry lean concrete is. The concrete mix proportions i e.

The mix shall be proportioned with a maximum aggregate cement ratio of 15. The mix design for dlc is not similar to the conventional concrete mix. 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. These mix ratios are decided based on type of construction and mix designs.

This is lower than specified maximum w c ratio value of 0 50. 1 22 2014 6 basic concrete mix design materials pounds of material s g. It is smooth concrete with a large proportion of aggregate in relation to cement than conventional concrete and is generally used as a base sub base for hard paving. Concrete mix ratios are the proportions of concrete components such as cement sand aggregates and water.

Mix proportion of dry lean concrete. 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. Dry lean semi dry mix cement bound material consisting of cement 4 20mm stone graded sand and minimal water. 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.

Dry lean semi dry mix cement bound material consisting of cement 4 20mm stone graded sand and minimal water. 1 curve d figure shown in the end found to be 0 42. Aggregate to cement ratio and moisture content for the dlc to be manufactured with ppc so that the requirement. The dry lean concrete is compacted using a 10 to 12t vibrating roller in the field.

Dry lean concrete is an important part of the modern rigid floor. 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. By measuring the cement stone and sand you will have a consistent concrete mix throughout your entire project.