The depth of excavation is an often overlooked information that affects the total wall area. It usually taken into consideration on walls located on the first floor.
To get the accurate amount of CHBs needed for the concrete wall, openings such as windows and doors are deducted on the total area of the wall.
To get the accurate amount of CHBs needed for the concrete wall, openings such as windows and doors are deducted on the total area of the wall.
Concrete hollow blocks (CHB) vary in sizes. Local hardware stores usually have 3 commercially-available CHBs that vary in thickness – 4”(10cm), 6”(15cm) and 8”(20cm).
4”(10cm) thick CHBs are usually used for interior walls while 6”(15cm) and 8”(20cm) thick CHBs are usually used for exterior walls.
You should select your mortar mix class according to your desired mix strength.
Class A = High-strength mortar recommended for below-grade applications such as for foundations and retaining walls.
Class B = Medium-strength mortar recommended for below-grade applications such as for exterior walls, shallow retaining walls and outdoor patio paving stones.
Class C = Medium-strength mortar recommended for general purpose projects such as for load-bearing exterior and interior walls.
Class D = Low-strength mortar recommended for non-load bearing projects.
Plaster can be applied in varying thicknesses with the suggested thinnest thickness at 8mm and the thickest at 25mm.
You should select your plaster mix class according to your desired mix strength.
Class A = For exterior projects.
Class B = For ceiling and exterior projects.
Class C = For brickwork mortar and interior walls.
Class D = For interior projects.
How many hours can your hired laborers finish a 1 square meter CHB layering work?
How many hours can your hired laborers finish a 1 square meter plastering work?