The South African National Accreditation System (SANAS) is recognised by the South African Government as the single National Accreditation Body that gives formal recognition that Laboratories, Certification Bodies, Inspection Bodies, Proficiency Testing Scheme Providers and Good Laboratory Practice (GLP) test facilities are competent to carry out specific tasks.
The Cement and Concrete Institute of South Africa is a useful provider of all cement and concrete related questions.
The Concrete Society of Southern Africa (CSSA) is an independent non-profit organisation that promotes excellence and innovation in the use of concrete and related products and services.
The Associations main aim is to promote the increased and most effective use of segmental block paving, concrete roof tiles, concrete retaining blocks, floor slabs, concrete masonry and concrete pipes by architects, engineers, specifiers, contractors and end users in a professional manner for the benefit of all.
Concrete is a construction material composed of cement (commonly Portland cement) as well as other cementitious materials such as fly ash and slag cement, aggregate (generally a coarse aggregate such as gravel, limestone, or granite, plus a fine aggregate such as sand), water, and chemical admixtures...Read more...
Concrete: The Hard Facts.
Making concrete: more than just mixing cement, water and earth.The Romans used it at least 500 years before the time of Christ, and they were probably not the only ones or the earliest ones.. Read more...
Ulula Ash's main purpose is to collect, beneficiate and sell fly ash to the building and construction industry. The company has a long term contract with Eskom for the removal of fly ash from the Kriel Power Station.
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