Document Archives

Structural Lightweight Aggregate Concrete in India

• ID:

  1270

• ESCSI:

  4600.096

• Author:

  Anonymous

• Publication Name:

  Indian Concrete Journal

• Type of Publication:

  Journal

• Publisher:

  Same

• Dated:

  1986

• Issue/Volume:

  September, Vol. 60, No. 9

• Other ID:

• Page(s):

  219-220

• Reference List:

  N

• Abstract:

  In the late fifties, experimental studies were carried out at the Central Building Research Institute (CBRI), India, to develop lightweight aggregate from clay and pulverized fuel ash. Other studies followed. However, the lightweight aggregate concrete (LAC) did not become popular in India owing to several reasons: 1) structures requiring its use were few; 2) natural aggregates, much cheaper, were generally abundant; 3) energy conservation was less urgent for a tropical country; and 4) there was less awareness of the need for environmental protection. These conditions are today no longer true. The reduction in the density of concrete results in a number of advantages. In practice, cylinder compressive strengths ranging from 20N/mm/SUP/2 to 40N/mm/SUP/2 have been obtained economically. LAC offers superior fire resistance and thermal insulation.