Investigation into the Heat of Hydration and Alkali Silica Reactivity of Sustainable Ultrahigh Strength Concrete with Foundry Sand

Table 1

Chemical and mineral composition of cement and silica fume.

Compound	Cement	Silica fume
SiO2	20.23%	95.8%
Al2O3	5.79%	0.18%
Fe2O3	1.97%	0.19%
CaO	62.02%	0.30%
K2O	NA	0.29%
Na2O	0.77% (equiv.)	0.20%
MgO	1.4%	0.20%
SO3	3.3%	0.11%