June 15, 2007—Lafarge announces the launch of two new value-added concrete products, which represent a real scientific leap forward in the rapidly transforming construction sector, according to the company.
Extensia and Chronolia both improve construction site working conditions, with each product designed to meet a specific challenge in the building sector. Initially, these two value-added concrete products will be rolled out in France, the United Kingdom and North America.
Chronolia combines two apparently contradictory features requested by customers: a concrete product that can be transported and handled like conventional fluid concrete, and which, once laid, very rapidly develops high mechanical strength.
Extensia enables the construction of surface areas of up to 400m2 without joints, thus limiting the problem of cracks and consequent maintenance costs. With conventional concrete, the maximum possible joint-free surface area is 25m2, says the company.
Lafarge researchers have been able to identify and gain a better understanding of the different phenomena underlying the behavior of concrete, knowledge that has led to the development of ultra-high performance concrete products. For more information, see the Web site.
