Soil Testing For Construction Of Road And Its Types

Soil testing is the important part of the construction activity and must be done before the start of the construction . The soil testing reveals the chemical and physical composition of the soil and helps to select the proper technologies for the construction activity .

The common testing for soil investigation for the road construction includes nature of the soil , particle size distribution of the soil, specific gravity , liquid limit , level of moisture and water table level . The specific gravity test , particle size test and moisture tests are used to know the the degree of saturation . The Soil Testing is carried out in the laboratory or on the site . For the laboratory testing ,the soil testing should be carried out on the soil sample taken from all part of the land used for the construction .

Types of soil testing for road construction

To know the moisture content of the soil , is very important for the construction . The test is carried in the laboratory . The moisture content of the soil shows compaction , particle size and permeability of the soil .

The test to know the specific gravity of the soil is also carried out in the laboratory . The particle size distribution test , which shows the distribution of the particle from sand particle to the fine clay size in the soil on the land select for the particular construction . This data is used in the construction of roads and airfield or runways of airports . The test shows the soil water movements .

Compaction test shows the compactness of the soil with the change in the level of moisture . All these tests will show the suitability of the soil for the road construction . The pile foundation engineering for the road also to large extent depends on the soil testing report .

The Land Surveying on the other hand, is done to know the boundaries of the land , mark the spot for the construction activities , and ensure that construction takes places on the land according to the plan . The elevation of the land , features of the land , fixing the boundaries of the land are some of the aims of the land survey . Both land survey and soil testing ensure the physical and legal safety and security of the buildings and roads constructed on the land and soil tested by professionals . The cost of the soil testing and land survey is peanuts compared to the construction cost but for the safety of the vertical structures , the tests are the vital part of the whole construction process .