Site mixing is no longer the more affordable option

by Tania Wannenburg

Readymix concrete is growing in popularity & proving that site mixing isn’t always cheaper.

In recent years the use of readymix concrete on largescale building and construction sites has grown to more than 50% of all concrete used and the figures show that the trend continues to rise.

In developed countries such as the USA, United Kingdom and other European countries, readymix concrete comprise approximately 90% of all concrete used, which indicates that there is still much more room for the growth of readymix as a primary construction material in South Africa.

According to Johan van Wyk of the Southern Africa Readymix Association (Sarma), the growth of readymix in the industry can be attributed to the requirement for faster construction times, the efficient deployment of labour, as well quality assurance of Sarma accredited concrete.

“In South Africa it is difficult to break the bagged cement and site mixing mentality as it has always been assumed that site mixing is a cheaper option,” he says. “Thankfully, through our ongoing engagement with the market as well as high level meetings with Government procurement bodies, industry organisations representing professional engineers, civil engineering contractors, consulting and municipal engineers as well as architectural bodies and the quantity surveying fraternity, we are pleased to see that perceptions are changing.”

“The local readymix industry is in a good place and is getting better and smarter every day,” says Johan. “If the company uses a professional readymix supplier, they will be able to tap into that company’s specialist knowledge and have concrete made that exactly suits the workability and strength requirements for a particular project. They can even supply designer mixes with special properties for high-tech building and architectural applications.”

He concludes that Sarma accredited readymix has the right properties to satisfy modern requirements for energy efficient building, while providing designers with a material that is freely available and sustainable to uphold environmentally responsible building practices into the future.

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