The ability of a material to endure alternate wet and dry conditions for a long period without considerable deformation and loss of mechanical strength is called:
Concept: Chemical Resistance: ● The ability of construction materials to resist the effects of chemicals like acids, salts, and alkalis is known as chemical resistance. Underground installations, constructions near the sea, etc. should be built with great chemical resistance. Weathering Resistance: ● The ability of a material to endure alternate wet and dry conditions for a long period without considerable deformation and loss of mechanical strength. ● Weathering affects the durability of the material. ● For example, corrosion occurs in iron due to weathering. To resist this paint layer is provided. Fire Resistance: ● The ability to withstand against fire without changing its shape and other properties. ● Fire resistance of a material is tested by the combined actions of water and fire. ● Fireproof materials should provide more safety in case of fire. Frost Resistance: ● The ability of a material to resist freezing or thawing is called frost resistance. It depends upon the density and bulk density of the material. Denser materials will have more frost resistance. ● Moist materials have low frost resistance and they lose their strength in freezing and become brittle.