Q. Chemical composition of cement is – (Solved)
1. Limestone and Clay
2. Limestone, Clay and Gypsum
3. Limestone and Gypsum
4. Clay and Gypsum
- b. Limestone, Clay and Gypsum
1. Limestone and Clay
2. Limestone, Clay and Gypsum
3. Limestone and Gypsum
4. Clay and Gypsum