Physicochemical Performance of Portland-Rice Husk Ash-Calcined Clay-Dried Acetylene Lime Sludge Cement in Sulphate and Chloride Media

Table 1

Compositions of various materials used.

Material	Description
OPC	Commercial ordinary Portland cement (42.5 N/mm)
PPC	Commercial Portland pozzolana cement or blended cement (32.5 N/mm)
PCDC	A blend of 55% OPC and 45% test ash
Test ash	A blend of DALS and a calcined mix of RH, SBE, and ground BB
SO1	Sulphate-simulated solutions with sulphate concentration equal to the sea water
SO2	Sulphate-simulated solutions with sulphate concentration twice the sea water
Cl1	Chloride-simulated solutions with chloride concentration equal to the sea water
Cl2	Chloride-simulated solutions with chloride concentration twice the sea water
DALS	Dried acetylene lime sludge
Corrosive media	Sea water, 20,000 and 40, 000 ppm Cl^− (MgCl2) solution, distilled water, 2342 and 4684 ppm SO4^2− (Na2SO4) solution