Axial Loading Tests on Short Reinforced Lightweight-Aggregate (Lytag) Concrete Columns

The Institution welcomes as its President for the Session 1966-67 Dr. D.D. Matthews, who takes office on 6 October. Denis Dearman Matthews was born in 1912. His grandfather, Henry Matthews, President of the National Federation of Building Trades Employers 1924, was a leading Manchester builder and founder of the firm of H. Matthews & Sons, of which the President’s present firm of Matthews & Mumby was originally a subsidiary. His father, Walter Matthews, who in 1938 was a Vice-President of the then Institute of. Builders, succeeded as head of the firm and besides being prominent in the industrial field was a strong supporter of technical education and training.

Mr. C. B. Stone (Vice-president) said it was a common failing of consultants not to admit that their Structures leaked; however, he himself did not know of any case of leakage due to shutter ties. Mr. Jackson had shown there was a weakness but Mr. Stone thought that, if there had been a low water/cement ratio and thorough compaction by vibration, the cavity would not have formed.

Mr. D. G. ,Alcock (Associate-Member) writes:- ‘The authors claim to present a unified approach for the determination of the degrees of freedom or indeterminacy of plane and space frames. In fact the claim is rather ambitious as it can only yield the degree of indeterminacy of a structure which is already known to be stable.'