absorption field, disposal field
A system of trenches containing coarse aggregate and distribution pipes through which septic-tank effluent may seep into the surrounding soil.
Glossary
soil
Glossary
allowable bearing value, allowable soil pressure, allowable bearing capacity
The maximum permissible pressure on foundation soil that provides adequate safety against rupture of the soil mass or movement of
Glossary
alkaline soil
Soil containing soluble salts of magnesium, sodium, or the like, and having a pH value of between 7.3 and 8.5.
Glossary
Coarse grained non-cohesive soils
Soils which are composed mainly of, or combinations of, sand and gravel consist of largely siliceous, unaltered products of rock
Glossary
Made up ground
Areas of low lying ground near the coast and around rivers close to towns and cities have been raised by
Glossary
Soluble sulphates
There are water soluble sulphates in some soils, such as plastic clay, which react with ordinary cement and in time