Specification of Marble Stone Flooring Essays - Construction

Specification of Marble Stone Flooring Scope This specification covers marble flooring in situ having uniform in color free from stains, cracks, decay and weathering and providing the necessary skirting edging of the same material. Methods Marble stone flooring consists of 20 mm to 25 mm thick marble slabs laid over 20 mm thick base of cement coarse sand mortar of 1:3 and jointed with white cement slurry mixed with pigment to match the shade of stone. The marble stones/slabs used in flooring or dado are cut according to the size and shapes given in drawing or to suit site dimension of the room and desired pattern. All angles and edges of marble slabs are true and square and are free from chipping. The surface is true and plain. Raw Material for Marble Flooring Marble Stone Coarse Sand Ordinary Cement White Cement Pigment Polishing Material Marble stone flooring is not a latest trend in flooring. We are using it from long time. Marble is very durable and its shining remains for long. Cleaning your marble floor is as easy as a b c. Raw marble slab before flooring Raw Material in Base Coat and Upper Layer Sand Brick Blast Cement Quantity of Cement and Other Material Sufficient for one Sq. meter for flooring Base Coat:- S. No. Materials Quantity 1. Fine Sand 0.15 CUM 2. Brick Blast 0.10 CUM 3. Cement 0.18 Bags Top Layer:- S.No. Material Quantity 1. Marble Stone 1.15 SQM 2. Cement 0.25 Bags 3. Cement White 0.02 Bag 4. Coarse Sand 0.015 CUM Installation of Marble Stone Flooring Preparation of sub base: Base coat consisting of cement concrete 1:8:16, 1:5:10 or 1:4:8 should be laid on compacted earth under marble stone flooring. Laying out of marble stone slabs The base concrete or RCC slab on which marble stone slabs are laid should be thoroughly cleaned. The average thickness of bedding mortar under marble stone slab should be 20 mm thick and the ratio of cement mortar should be 1:3 The sand used in mortar should be coarse sand. The thickness of bedding should not be less than 12 mm in any place The top surface of mortar (bedding) should be leveled correctly by adding fresh mortar at hollows if any. The mortar is allowed to harden and cement slurry shall be spread at the rate of 4.4 kg per sq. meter. Marble stone slab to be paved should then be lowered gently back in position and tapped with wooded mallet till it is properly bedded and leveled with adjoining slab. Care should be taken to match the grains of slabs. All stone slabs should be laid in same manner. After lying of each slab surplus cement on the surface of slabs should be cleaned. The surface of flooring as laid should be true to slopes. The edges of slabs already paved are filled with white cement with or without admixture to match the shade of the stone slabs Curing Of Marble Stone Flooring The Marble stone floor should be cured for a minimum period of seven days. Polishing and Finishing The grinding may be done either by hand or by machine. Manual grinding should be done after two days of laying of marble flooring Machine grinding should commence 3-4 days after laying marble stone flooring First Grinding The grinding should be done by machine with grit No. 60. The water should be used profusely during grinding. After grinding the surface should thoroughly be washed to remove all grinding mud. A grout of cement and pigment in the same mix and proportion apply to the surface. It should be allowed to dry and then cured for four days. Second Grinding The second grinding is done with machine fitted with fine grit blocks No120. The surface is again washed cleanly and is repaired if required. Specification of Mosaic Flooring: Scope: This specification covers different types of tiles available in various decorative colours sizes. Construction of floor by laying these tiles is time saving. The main raw materials used for the manufacture are cement concrete coloured stone chips. These tiles are made generally in the sizes of 200 200 20 mm, 300 300 25 mm. These tiles can also be