Mortars Sample Clauses
The 'Mortars' clause defines the requirements and standards for the use of mortar materials in construction projects. It typically specifies the types of mortar allowed, their composition, mixing procedures, and quality control measures to ensure structural integrity. For example, it may require that only pre-approved mortar mixes be used or that all mortar be tested for strength before application. This clause ensures that the mortar used meets safety and durability standards, thereby reducing the risk of structural failures and ensuring compliance with building codes.
Mortars. Cement mortar shall consist of one part of Portland cement, to three parts of sand by volume. The cement/lime mortar shall consist of one part of Portland cement, one part of lime and six parts of sand by volume. The ingredients of mortar shall be measured in proper gauge boxes on a boarded platform, the ingredients being thoroughly mixed dry, and again whilst adding water. In the case of cement/lime mortar the sand and lime shall be mixed first and then the cement added. All mortar is to be thoroughly mixed to a uniform consistency with only sufficient water to obtain a plastic condition suitable for trowelling. No mortar that has commenced to set is to be used or remixed for use.
Mortars. The sand to be used for mortar shall be clean and sharp. It shall be chemically and structurally stable and shall comply with the Table of Grading below. The lime if used for mortar shall be hydrated lime complying with BS EN 459-1:2001. Where coloured mortars are required these shall be obtained either by the use of coloured cement or by addition of pigments complying with BS 1014. The cement and water to be used for mortar shall comply with the requirements given under Concrete Works Section, and the methods of measuring and mixing shall be the same. The following Mixing Table shall be strictly adhered to in all cases. Normal Mix Cement Kilos Sand m3 Lime (Dry Hydrate) Kilos