TESTS ON MORTAR

The tests which are conducted on the prepared mortars to ensure their quality are following:

1. Crushing Test

2. Tensile Strength Test

3. Adhesive Test.

1. Crushing Test: This test is performed with the mortar on a brick work. In a compression testing machine this brick work is crushed and the load is noted down. Then the crushing strength is obtained since load divided by cross-sectional area.

2. Tensile Strength Test: The mortar prepared is placed in a mould of bricket .  It has central cross-sectional area as 38 mm × 38 mm. The briquette is pulled under the grips of tensile testing machine after curing. The ultimate load noted down. Then the tensile strength of mortar is load which is divided by the central cross-sectional area.

3. Adhesive Test: As shown in given figure two bricks are joined together with mortar to be tested. From an overhead support, the upper brick is suspended. A board is hung from the lower brick. Then weights are added to the board until the bricks separate. Adhesive strength is the load divided by area of contact.

                          Elevation

Briquette for tensile test

                             Adhesiveness test arrangement