C-1 "Construction of blockworks (or brickwork) shall comply with ASTM C426.
Precast concrete blockworks shall be hollow blocks complying with ASTM C 90.
Masonry bricks, complying with ASTM C26.
Cement of mortar: portland type, complying with ASTM C 150.
Sand shall be clean, sharp, mason's sand complying with ASTM C150
Water for mixing shall be free of alkalis, acids, and organic materials. Sea water is prohibited.
Mortar for unit masonry, complying with ASTM C 270.
All works implemented for masonry works shall include all necessary lintels, reinforcement,
opening, thresholds, sills, ties. "
C-2 50 mm extended polystyrene square edge insulation board with gypsum board