Can masonry cement be used in RCC structures?

No, it is specifically designed for masonry mortars and plastering, lacking the necessary compressive strength for structural concrete.

What is the initial setting time requirement for masonry cement?

It should not be less than 90 minutes (Clause 6.2 / Table 1).

What is the water retention requirement?

Not less than 60 percent to ensure the mortar remains workable and does not lose water rapidly to masonry units.

IS 3466

: 1988

Masonry cement – Specification

CurrentSpecializedSpecificationMaterials Science · Cement, Concrete, Aggregates and RCC

Download PDF BIS Portal Google

This standard covers the manufacture, physical, and chemical requirements of masonry cement, which is formulated with plasticizing materials to yield highly workable mortars for brickwork, blockwork, and plastering.

Masonry cement – Specification

Quick Reference Values

Initial setting time≥ 90 minutes

Final setting time≤ 24 hours

Compressive strength at 7 days≥ 2.5 MPa

Compressive strength at 28 days≥ 5.0 MPa

Soundness (Le-Chatelier expansion)≤ 10 mm

Soundness (Autoclave expansion)≤ 1.0 %

Water retention≥ 60 %

Practical Notes

Masonry cement contains air-entraining or plasticizing agents; do not add additional plasticizers on site.

It is strictly intended for masonry mortars and plasters and must never be used for structural reinforced concrete.