Rubble Stone masonryy

Reuse and recyclable waste construction material. In this ppt you will types of rubble stones, uses, properties, test to be done on stone , where it can be reuse, et al.

1. Presented By- Dhiraj Rajendra Supekar .

2. RUBBLE STONE MASONRY The stone which is used are either rough or undressed. The masonry has wider joints, since stones of irregular sizes are used. Rubble is a broken stone of irregular size, shape and texture; undressed especially as a filling-in and is often used to create stone walls. INTRODUCTION

3. TYPES OF RUBBLE MASONRY Rubble Masonry Coursed Rubble Masonry Uncoursed Rubble Masonry Polygonal Masonry Flint Masonry Dry Rubble Masonry

4. COURSED RUBBLE MASONRY In coursed rubble masonry construction, the stones in particular course are in equal heights. The stones hence used posses different sizes. In this type , all the courses do not have same height. This type is commonly employed in the construction of public buildings, residential buildings and piers of ordinary bridges.

5. UNCOURSED RUBBLE MASONRY These Stones are of irregular shapes and sizes directly obtained from the quarry by removing the weak corners & edges by hammer. Cheapest, roughest and poorest form of stone masonry.

6. POLYGONAL RUBBLE MASONRY In this type of masonry the stones are roughly dressed to an irregular polygonal shape. The stones should be so arranged as to avoid long vertical joints in face work and to break joints as much as possible.

7. FLINT RUBBLE MASONRY This type of masonry is used in the areas where the flint is available in plenty. These are the irregularly shaped nodules of silica. These stones are brittle & therefore break easily.

8. DRY RUBBLE MASONRY This type of masonry is used in the construction of retaining walls in agriculture land, pitching earthen dams and canal slopes in the form of random masonry without any mortar. This type of construction is the cheapest & requires more skills in construction .

9. Properties Stone Masonry Strength High strength Durability Excellent Fire Resistance Less Handling Requiring lifting devices Method of Construction Quarrying, Dressing Cost More Use Pier, Dam, Residential

10. Test conducted on Stones Acid Test : understand the presence of CaCo3 in building stone. Attrition Test : Resisting power against grinding action or wear and tear against the traffic. Crushing Test : Compressive strength of stones. ( i.e. 100 MPa ) Impact Test : Resistance of stones against sudden loading. Smith’s Test : Presence of soluble matter in stones. Water Absorption Test : To check how much water the stone may absorb. ( > 5 % ). Hardness Test : To determine the surface abrasion resistance of stone .

11. FAILURE Failures can be occurred due - Defects can arise if a stone block is incorrectly placed in a building in relation to its bedding plane. Failure occurs over time through the wetting and drying cycle, possibly exacerbated by frost attack. Usually the damage is to mortar joints that they have lodged in. Issues may occur such as incorrect mix proportions, use of unauthorized admixtures, sulphate attack, freeze and aesthetic failures.

12. Reuse for Decorative garden walkway. Flowerbed edging. Fire pit. Rock Riverbed. Filling in Plinth Level . Art Project.

13. Thank You