QUIKRETE® FastSet™ Non-Shrink Grout, 60 lb Net Content, Bag Container, Granule, Solid Form, Gray to Gray Brown, Composition: 40 to 70% Sand, Silica, Quartz, 10 to 30% Portland Cement, 10 to 30% Calcium Sulfoaluminate, 5 to 10% Calcium Aluminate, 1 to 5% Calcium Sulfate, 1 to 5% Limestone Dust, 24 hr Curing Time, Additional Information: 13 pH, 1 year Shelf Life, 15 min Working Time, 25 to 50 min Set Time