000			00742cab a2200241 4500
001			WB2716-05
008			090401t1991 xxu||||| |||| 00| 0 eng d
035			_a(Sirsi) u60663
041			_aeng
245			_aMethane restricts Clayboard use
260			_c1991
350			_a0
490			_aNew Civil Engineer _vno 941 11/4/91 p11
520			_aMethane gas has been found under at least three London buildings. It is thought that the deterioration of Clayboard , a product used in the foundations of buildings, may be the cause.
650			_aBROADGATE
650			_aDUFAYLITE
650			_aLANDFILL SITES
650			_aNHBC
650			_aOVAL CRICKET GROUND
690			_aBUILT ENVIRONMENT
942			_n0
948			_c04/03/1997
999			_c37466 _d37466