Towards Sustainability: An Experimental and Analytical Investigation of an Agricultural Waste as a Pozzolanic Material in Concrete Mixtures

Table 4

Workability test results of freshly mixed concrete mixtures.

Designation	RHA percentage replacement		W/C ratio
Control (OPC)	0	30 mm	0.49
Control (PPC)	0	34 mm
RHA 5%	5%	28 mm
RHA 10%	10%	25 mm
RHA 15%	15%	25 mm
RHA 20%	20%	20 mm
RHAADM 5%	5%	—	0.43
RHAADM 10%	10%	—
RHAADM 15%	15%	—
RHAADM 20%	20%	—

RHA stands for rice husk ash and RHAADM is rice husk ash with admixture.