HEB produced by combining two different grade strength in the brick matrix. Mortar grade strength involved in the productivity of HEB is grade 5 N/mm² and grade 10 N/mm². The materials used in producing HEB named as plastic as fine aggregate material, Ordinary Portland Cement (OPC) as binder and water. HEB was prepared to have a size of 220mm x 102.5mm x 65mm. For the HEB, the layer is 20mm for both outer layer and 25mm for the inner layer. Plate 1.1 shows the dimension of HEB.

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