The application of lime and cement soil stabilization at BAA airports

Abstract

The Paper covers the introduction and progressive development of soil stabilization of the natural soil conditions at Gatwick, Stansted, Heathrow and Glasgow airports in the period 1980–1990. The main applications relate to the Weald Clay at Gatwick and the Boulder Clay at Stansted; reference is also made to work at Heathrow involving Gravel/Brickearth deposits and at Glasgow where soft clay deposits occur. The dual use of both lime and cement to modify and strengthen the natural subgrades and earthwork formation are described together with summaries of the main control testing results. Reference is also made to a general description of the specification and construction plant methods in use. The prime object of the Paper is to make available full practical details of large scale lime and cement soil stabilization work, bearing in mind the shortage of such information on construction site work undertaken in the UK.