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Mortar is a workable paste used to bind bricks and other masonry units together. A mortar joint acts as a sealant, a bearing pad, the glue that sticks the units together yet keeps them apart and, in this sense, performs as a gap-filling adhesive.
A 1: 2:9 could mean 1 part by volume of cement (the gauging material) to 2 parts by volume lime to 9 parts by volume of sand, and so on. In all these mixes, the end game is to coat all the sand grains with binder to make a complete mortar.
Mortar is a workable paste used to bind bricks and other masonry units together. A mortar joint acts as a sealant, a bearing pad, the glue that sticks the units together yet keeps them apart and, in this sense, performs as a gap-filling adhesive.
• Site mixing: Mortar should be mixed by hand or machine until it has a uniform colour throughout. Note: Shovel mixing of mortars can cause apparent colour changes in the ˜ nished masonry, particularly if pigments are included.
Mortar binds bricks and blocks together to give strength and stability to a wall. Freshly mixed mortar must be soft and plastic so that it spreads easily and makes good contact without becoming too strong. Too strong a mortar may crack and is wasteful and expensive. 1. Materials 1.1 Cement Preferred cement types are:
MORTAR GUIDE. The following calculations are based on approximately 0.6m3 (1.2T) of damp sand, which will lay approximately 1,000 standard bricks. The Lime ‘n’ Lite and Lime ‘n’ Grey products are pre-blended cement and lime at 1:1 by volume.
A mechanical bond is achieved as follows: The mortar should be mixed to a workable consistency and spread out over the top surface of the brick wythe. The mortar will fill the surface irregularities of the brick unit by the pressure applied by the mason laying the next course of brick.
