Performance of Concrete Placing in Hong Kong Buildings

Abstract

A study was made in the early 1990s of the utilization of labor and equipment resources in the in situ concreting of buildings in Hong Kong. The study involved close observation of 154 pours on building construction sites and 38 days spent at 38 ready-mixed concrete (RMC) batching plants, one day at each. Much detailed productivity information has been derived and the different concrete placing methods have been compared. Other factors affecting the placing rates, pour size, type of pour, and supply of concrete have also been studied. Benchmarks, which describe the state of the industry in broad terms, have been produced not only for measuring progress in the standards applying in Hong Kong as time goes by but also for making comparisons with other large cities.