75268078
Apr 2, 1997
May 5, 1998
chemical compounds for curing fresh concrete or for waterproofing and/or sealing existing concrete
Chemicalssolid additives and toppings to fresh concrete, namely, silica sand or gravel and cement; cementitious and epoxy-based grouts; and relax-modified cement compounds for concrete repair, patching and resurfacing
Nonmetallic Building Materials