The Concrete Manufacturers Association (CMA) is the primary representative of the precast concrete industry. Precast concrete is a building material which slots very comfortably into the modern world of fast track and modular construction, in many instances leading the way with innovative technologies and applications. The CMA’s promotional activities target architects, engineers, developers, contractors and property owners and the pooled knowledge and expertise of its members fosters an environment which encourages the development of innovative, environmentally and community-friendly products. The Association’s prime focus is on ensuring that its members’ products are applied correctly and that the product manufactured by the members is of good quality and compliance to the relevant product specifications.
Concrete masonry has wide applications in modern industrial, commercial, educational and residential buildings. The main types of masonry walls dealt with in these guidelines are: single leaf walls using solid units, single leaf walls using hollow units and cavity walls. The details shown in this publication are intended merely as a guide. Each construction situation is unique and there are many factors to be considered before a detail is finalised – far too many for inclusion here. The purpose of good detailing is to assist in achieving sound construction and a buildable structure that will perform well in service. The following factors must be taken into account when detailing for concrete masonry structures...
A manhole is defined as a “small covered opening, giving access beneath”. In Engineering terms “beneath” is normally a vertical shaft giving access to a buried pipeline or other underground structure. This publication deals with manholes constructed using precast concrete sections.
X-Tech IntegraFloor Emery is a premixed non rusting floor hardener used to form a monolithically hardened concrete floor. It produces an abrasion resistant and hard wearing surface and is applied by the “shake on” technique.
Technicrete ISG (Pty) Ltd is a subsidiary of the Infrastructure Specialist Group which also includes Ocon Brick [Hyperlink to website] and Rocla. Technicrete ISG is a leading supplier of innovative precast concrete products to the construction, mining and domestic markets in South Africa.