LIU HUP and R.C. DE VEKEY** *Sichuan Institute of Building Research** Building Research Establishment

This is part of a co-operative research programme between the BRE, and SIBR, China. Pull-out data were obtained using prisms I brick deep x 1.5 brick wide x II courses high using two mortar mixes, five varieties of fired clay bricks and one calcium silicate brick. Statistical {linear regression) analysis was used to relate data on the crushing strength of the bricks to the pull-out data to assess the possible use of this test for site estimation of the strength and quality of bricks in existing buildings.