Briefly explain test conducted on mortar.

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written 2.1 years ago by

prajapatijaimin • 3.2k

Solution:

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

(i) Crushing Test

(ii) Tensile Strength Test

(iii) Adhesive Test.

(i) Crushing Test:

This test is carried out on a brick work with the mortar. This brick work is crushed in a compression testing machine and the load is noted down.

Then the crushing strength is obtained as load divided by cross-sectional area. enter image description here

(ii) Tensile Strength Test:

The mortar prepared is placed in a mould of bracket which has central cross-sectional area as 38 mm × 38 mm.

After curing the briquette is pulled under the grips of tensile testing machine.

The ultimate load noted. Then the tensile strength of mortar is load divided by the central cross-sectional area. enter image description here

(iii) Adhesive Test:

Two bricks are joined together with mortar to be tested as shown in Figure The upper brick is suspended from an overhead support.

A board is hung from the lower brick. Then weights are added to the board till the bricks separate. The adhesive strength is the load divided by area of contact. enter image description here

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