Dry Lean Concrete Mix Design

In lean concrete less quantity of paste is available for providing lubrication per unit surface of aggregate and hence the mobility of aggregate is restricted.

Dry lean concrete mix design.

The mix design for dlc is not similar to the conventional concrete mix. It is one of the common and popular cement treated sub base base for concrete pavements. 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. Basic concrete mix design materials pounds of material s g.

7 5n mm2 at 28 days. Dry lean concrete is a mixture in which the amount of cement is less than the amount of liquid that is present in the layers. In 2013 kumar investigated the properties of pavement quality concrete and dry lean concrete containing copper slag as fine aggregate so that pavement quality concrete mixtures were prepared by. 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.

Abs volume 667 3 15 x 62 4 cement 667 3 15 3 39 total cementious 667 miller stone 1590 2 6 9 80 evert sand 1242 2 65 7 51 water 300 1 481 1590 2 60 x 62 4 1242 2 65 x 62 4 4 81 air 5 5 1 485 total 3799 27 00 w cm 0 45 unit wt. Gen 0 or wet lean mix concrete is a versatile mix commonly used in both commercial and domestic projects for a wide range of general applications non structural applications. Everything you need to know about dry lean concrete. Dry lean concrete is layed on the sub base to get firm and level base for pqc or concrete road.

This makes it ideal as a base layer on which other types of concrete are placed on top. It is good for a flat surface on uneven or dirty terrain. 140 72 basic concrete mix design materials pounds of. Academia edu is a platform for academics to share research papers.

Mix proportion of dry lean concrete. Very lean mix is not desirable since it does not contain enough finer material to make the concrete cohesive. Domestic foundations in dc 1 soils. For the concrete with undemanding performance nominal or standard mixes prescribed in the codes by quantities of dry ingredients per cubic meter and by slump.

The higher the aggregate cement ratio the leaner the concrete.