Experimental investigtion on characteristic properties of previous concrete

Abstract

Pervious concrete is a relatively new concept. This concrete can be used for the rural road pavement, with relatively less traffic. As the concrete allows the water to pass through it, this would greatly help in recharging the ground water level. This has multifaceted benefits, including that for agriculture. Pervious concrete can be introduced in rural areas as a road pavement material. Pervious concrete as a paving material has seen renewed interest due to its ability to allow water to flow through itself to recharge groundwater level and minimize storm water runoff. In rural areas, cost consideration is the primary factor which must be kept in mind. In rural areas, storm water management practice is costly. Pervious concrete pavement is unique and effective means to meet growing environmental demands. In cities also, the pervious concrete pavements can be used for parking areas, garden, etc. It can be advantageously used as a replacement for the paver blocks. By capturing rainwater and allowing it to seep into the ground, this pavement technology creates more efficient land use by eliminating the need for retention ponds, well and other costly storm water management devices. However, the need for pervious concrete is of low grade, as there will not be heavy loads in parking area, garden, etc. In this project work, an attempt has been made to develop a low grade pervious concrete in the laboratory. The conventional concrete making materials are used for the same. However, the fine aggregates (sand) are not used. Only 10 mm coarse aggregates & 20 mm coarse aggregates are used. The proportion of concrete is 1 cement: 4 aggregates. Due to absence of fine aggregates, the concrete becomes porous in nature. This, in turn, allows the water to pass through it. The strength tests, workability tests & permeability tests are done on concrete to assess its properties & its suitability for the intended purpose.