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Stone Masonry Types.pptx

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Stone Masonry Types.pptx

  1. 1. Stone Masonry Types
  2. 2. The masonry work which is constructed in stones is known as stone masonry. DEFINITION-
  3. 3. • RUBBLE MASONRY ASHLAR MASONRY 1. Coursed Rubble 1. Ashlars fine 2. Un coursed Rubble 2. Ashlars rough tooled 3. Random Rubble 3. Ashlars rock faced 4. Dry Rubble 4. Ashlars chamfered 5. Polygonal Rubble 5. Ashlars block-in- 6. Flint Rubble course STONE MASONRY
  4. 4. In this type of construction, the stones of irregular size are used. The are obtain from quarry, are taken in use in same form or they are broken and shaped in suitable sizes by means of hammer as the work proceed. The strength of rubble masonry mainly depends on three factors:  The quality of mortar  The use of long through stones at frequent interval. (I)RUBBLE MAONRY
  5. 5. This method of construction is the same as uncoursed masonry except that the courses varying from 30 to 45cm thick & all the courses are not same height For the construction of this type of masonry, quoins are built first and line is stretched between the tops of quoins. The tervening walling is then brought up to this level by using different size of stone. COURSED ROUBLE MASONRY
  6. 6. This is the roughest & cheapest form of stone walling. In this type of masonry, the stones used are of widely different sizes. This type of masonry is used for the construction of compound wall ,godowns ,garages, labour quarters etc. It gives a increased strength & better appearance. 2.UNCOURSED RUBBLE MASONRY
  7. 7. In this type of rubble masonry, the stones of irregular size & shapes are used as shone in fig. bellow. In this masonry the stones are arranged so as to have a good appearance. To construct a this type of masonry wall, more skill is required. RANDOM RUBBLE MASONRY
  8. 8. Dry rubble masonry is that rubble masonry, made to courses, in which mortar is not used in the joints. This type of construction is the cheapest & requires more skill in construction. This may be used for non load bearing walls, retaining wall etc. DRY RUBBLE MASONRY
  9. 9. In this type of rubble masonry, the stones are hammer dressed & the stones selected for face work are dressed in an irregular polygonal shape. Thus the face joints are seen running in all direction. As the stone are of irregular shape, it is difficult to adjust them with regard to stability & appearance of the work as a whole. So more skill is required in the construction of this type of masonry. POLYGONAL RUBBLE MASONRY
  10. 10. In this type of rubble masonry stones used are flints which are irregularly shaped nodules of silica. The width & thickness vary from 80mm to 150mm & length vary from 150mm to 300mm.The are extremely hard. But they are brittle & therefore they break easily. This type of masonry is used at place where the flints are available readily &economically. 6.FLINTH RUBBLE MASONRY
  11. 11. In this type of construction, the square and rectangular block of stones are used. The courses are not necessarily of the same height. The height of stones varies from 250mm to 300mm. ASHLAR MASONRY:
  12. 12. In this type of ashlar masonry, the bed, sides faces are finely chisel dressed. The stones are arranged in proper bond & thickness of mortar joints does not exceed 3mm. This type of construction gives perfectly smooth appearance, but it is costly in construction ASHLAR FINE MASONRY
  13. 13. In this type of ashlar masonry, the strip is provided as ashlar rock masonry. But it is chamfered or bevelled at an angle of 45 degrees by means of chisel for adepth of about 25mm. Another strip is then provided on the remaining exposes fase of the stone. A neat appearance of the grooved joint is obtained with the help of this type of construction. ASHLAR CHAMFERED MASONRY

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