Why we choose to use concrete spacers over those made of plastic, granite stone…?
Plastic spacers
Plastic spacers do not bond well with concrete. When the concrete is poured into the form, a small gap is created between it and the plastic. Plastic has a coefficient of thermal expansion and contraction 10 to 15 times that of concrete, and when subjected to temperature variations, the plastic continues to expand and contract at that higher coefficient. At high temperatures, plastic can even melt. The result is a separation between the spacers and the poured concrete, […]
