Effect of the Key Mixture Parameters on Shrinkage of Reactive Powder Concrete

Table 1

Chemical composition of cement and silica fume.

Constituent	Cement (%)	Silica fume (%)
CaO	64.35	0.41
SiO2	22.0	86.75
Al2O3	5.64	0.41
Fe2O3	3.80	2.12
K2O	0.36	0.67
MgO	2.11	0.18
Na2O	0.19	0.17
Equivalent alkalis; (Na2O + 0.658K2O)	0.33	0.62
SO3	2.10	0.73
Loss on ignition	0.70	3.35