HC Deb 25 November 1975 vol 901 cc98-9W
Mr. Rooker

asked the Secretary of State for the Environment when he expects to complete his consideration of amendment to the building regulations regarding the use of calcium chloride as a setting agent in reinforced concrete.

Mr. Armstrong

Within the next few months. We are awaiting the advice of the British Standards Institution Committee which is considering this question.

Mr. Rooker

asked the Secretary of State for the Environment if the Property Services Agency has yet completed remedial work on the six Ministry of Defence buildings found to be defective in the reinforced concrete due to the excessive or improper use of calcium chloride.

Mr. Armstrong

Of the six cases referred to, work has been substantially completed in one, is in hand on three others, and has not yet been started on the remaining two.

Mr. Rooker

asked the Secretary of State for the Environment which organisation sponsored the work at the Building Research Station relating to the use of calcium chloride as a setting agent for reinforced concrete.

Mr. Armstrong

This work was carried out between 1953 and 1960, with some financial support from Imperial Chemical Industries.