Instead of plastering entire surface of the masonry, special mortar finishing work is done to the exposed joints. This is called pointing. It consists of raking the joints to a depth of 10 mm to 20 mm and filling it with richer mortar mixes. In case of lime mortar pointing mix used is 1 : 2 and…
Applying mortar coats on the surfaces of walls, columns, ceiling etc. to get smooth finish is termed as plastering. Mortar used for plastering may be lime mortar, cement mortar or lime-cement mortar. Lime mortar used shall have fat lime to sand ratio of 1 : 3 or 1 : 4. If hydraulic lime is used mix proportion…
Brick masonry is built with bricks bonded together with mortar. For temporary sheds mud mortar may be used but for all permanent buildings lime or cement mortars are used. The various types of bonds generally used in brick masonry are 1. Stretcher bond 2. Header bond 3. English bond and 4. Flemish bond. 1. Stretcher…
Masonry means construction of buildings using building blocks like stone, bricks, concrete blocks etc. Masonry is used for the construction of foundation, plinth, walls and columns. Mortar is the binding material for the building blocks. In this article different types of stone masonry used are explained and points to be observed while supervising stone masonry…
Concrete mixers For small jobs conc. mixers are used to mix the ingredients of the concrete Following type of concrete mixers are used in the construction Hand felt tilting drum mixers These are smaller capacity mixers ,aggregate cement and water fed in to the drum by hand Loader fed tilting drum mixers These are larger…
Introduction to construction equipment’s Types of earth moving equipment Classified into following types · Production equipment · Equipment used for digging and moving · Service equipment · Dozers and motor girders Tractors Tractors are machine which change the engine energy into tractive energy These are primarily used for pull or push the loads They are also used for different…
Bridge Decks The principal function of a bridge deck is to provide support to local vertical loads (from highway traffic, railway or pedestrians) and transmit these loads to the primary superstructure of the bridge, Figure 1(1). As a result of its function, the deck will be continuous along the bridge span and (apart from some…
Types of structures under jacking · Box jacking · Arch jacking · Pipe jacking OPERATONS The box shaped tunnel structures are pre-fabricated units which are pushed into soil by hydraulic jack Soil is excavated at the advancing face by manual means or by excavators To avoid settlements of over laying roads or rail track soil is excavated after…
Acoustics is the science of sound ,which deals with origin ,propagation and auditory sensation of sound and also with design and construction of different building units to set optimum condition for producing and listening speech music etc Fire Protection No building material is perfectly fire proof A wider interpretation of the fire safety may be…
Roof finishing accessories include all types of accessory materials that are used to finish a roof. Flashing, drip edge, and roof drains are all examples of roofing accessories. Roof finishing accessories are widely available for a range of applications and may be chosen for functional, aesthetic, or budgetary reasons. Roofing accessories are largely made from…