State the advantages and disadvantages of pre-cast concrete.

State the advantages and disadvantages of pre-cast concrete.
by

1 Answer

Answer :

Advantages of precast concrete products:

1. The concrete of superior quality is produced by strict quality control.

2. It is not necessary to provide joints in the pre-cast construction.

Disadvantages of precast concrete products:

1. If not properly handled, the pre-cast concrete may be damaged during transport.

2. It becomes difficult to produce satisfactory connections between the pre-cast members
by

Related questions

State any four situations where hollow concrete block masonry is used.

Description : State any four situations where hollow concrete block masonry is used.

Last Answer : Situations where hollow concrete block masonry is used. 1) Hollow concrete blocks are fire resistant and hence are used in masonry where fire resistance is necessary, like furnace, chimney etc. ... . 6) They are used to achieve lower labor involvement and greater durability, like Retaining walls

State any two uses of precast concrete blocks.

Description : State any two uses of precast concrete blocks.

Last Answer : Uses of precast concrete block. 1. In parking areas, footpaths, on road to give pleasant look. 2. Fencing poles for fencing work. 3. It is used for loadbearing masonry, in earthquake zones. 4. Lightweight blocks for partition walls.

Write short note on solid concrete blocks

Description : Write short note on solid concrete blocks

Last Answer : Solid Concrete Blocks: The specification and the characteristics of a solid concrete blocks depend on the machine used to manufacture concrete blocks. The most common size of solid concrete block ... size and shape. It is environmental friendly and hence utilizes wastes and local resources. 

Explain about Agro waste material. State its importance in construction.

Description : Explain about Agro waste material. State its importance in construction.

Last Answer : Waste materials produced from agricultural byproducts such as coconut shells, sugarcane bagasse, straw, rice husk, coconut fibers, coconut and areca nut tree trunks, coconut leaves etc. are known ... floor tiles, brushes, mattresses j) Mixed with cement mortar which increases the impact strength

Enlist constituents of Plaster of Paris and state the two uses of Plaster of Paris

Description : Enlist constituents of Plaster of Paris and state the two uses of Plaster of Paris

Last Answer : The constituents of POP are It consists of calcium sulphate. It is chemically CaSO4. 1/2 H2O. It is obtained by calcining gypsum at 120 deg. C. by removing ¾ of water of crystallization. ... Used by orthopedic surgeon for setting bones g) Used for wall plasters, wall boards, structural tiles.

State four types of special mortars and give one use of each

Description : State four types of special mortars and give one use of each

Last Answer : a) Fire resistant mortars: Uses: a) Used with fire bricks for lining furnaces b) Used at fire places, ovens etc. b) Injection mortar: Uses: a) For protecting the reinforcement from ... room in hospitals and clinics f) Light weight mortar: Used in sound proof and heat proof constructions.

State any two properties and any two uses of fly ash

Description : State any two properties and any two uses of fly ash

Last Answer : Properties: a) It contains SiO2, Al2O3, Fe2O3, CaO and some toxic elements b) Flyash together with bottom ash is a non-hazardous material c) These particles are spherical in shape d) ... reclamation l) Used in cement production m) Production of roller compacted concrete n) Used in geopolymers

State the two uses of the following construction materials: i) Hollow blocks ii) Pavement blocks

Description : State the two uses of the following construction materials: i) Hollow blocks ii) Pavement blocks 

Last Answer : i) Hollow Blocks: a) Used for external load bearing walls, b) Panel walls, c) Columns, d) Retaining Walls e) Compound Walls, f) Used for sound insulation g) It Keeps the house cool in summer ... give pleasant look d) Petrol pumps e) gardens f) Airports g) Kids play area h) Jogging tracks

State the uses (two each) of the following construction materials: i) Soda lime glass ii) Ferrous metal

Description : State the uses (two each) of the following construction materials: i) Soda lime glass ii) Ferrous metal

Last Answer : i) Soda lime glass: a) Used in window and plate glass b) Glass blocks c) Bottles d) Inexpensive table wares e) Fluorescent and incandescent light bulbs ii) Ferrous metal: a) CI (Cast Iron) ... GI sheets f) Carbon steel is used for making tools g) Weld meshes are used for partition and fencing

Define asphalt and state any three properties of asphalt.

Description : Define asphalt and state any three properties of asphalt.

Last Answer : Definition: It is a form of bitumen which is sticky, black and viscous liquid or semisolid in nature. Aggregates + bitumen = asphalt. OR It is an artificial mixture of bitumen and inert matter like alumina, ... cooled. 8. It is tough and durable material 9. It is soluble in C2S, Benzene, Naptha

State the properties and uses of distemper

Description : State the properties and uses of distemper 

Last Answer : Properties: a) Less durable than paint b) Easy to apply c) Poor workability d) Available in variety of shades e) Costly f) Gives smooth and pleasing surface g) Uses: a) ... surfaces on plastered cement concrete of buildings  b) To paint the buildings from outside in areas of low rainfall

State important properties and uses of geopolymer cement

Description : State important properties and uses of geopolymer cement 

Last Answer : Properties: a) It gain ultimate strength within 24 hours and cures more rapidly than OPC. b) It has an ability to form strong chemical bond with all types of reagents and water. c)It ... of fresh water via the elimination of fly-ash disposal sites. h) Various applications in building industry

State various thermal insulating materials. State any two properties of insulating material

Description : State various thermal insulating materials. State any two properties of insulating material

Last Answer : Thermal insulating materials: 1) Asbestos 2) Aluminum Foil 3) Thermocol 4) Saw dust 5) Cork board slabs 6) Foam glass 7) Rock Wool 8) Glass Wool 9) ... . h) Presence of Moisture: with the increase in moisture content, the coefficient of thermal conductivity rises greatly

What do you mean by eco-friendly building materials? State any two properties of it.

Description : What do you mean by eco-friendly building materials? State any two properties of it.

Last Answer : Eco-friendly means earth-friendly or not harmful to the environment. This term most commonly refers to products that contribute to green living or practices that help conserve resources like water and ... It reduces air pollution, land pollution & water pollution. 7. It is locally available. 

State the role of civil engineer in the field of Environmental Engineering.

Description : State the role of civil engineer in the field of Environmental Engineering.

Last Answer : The civil engineer plays an important role in Environmental Engineering in the following ways: 1. Sensible use of water, land, and air so that the environmental pollution and degradation is ... , designing, construction of water and waste water treatment plants, and disposal of solid waste.

Define quarrying of stone. State any two methods of quarrying

Description : Define quarrying of stone. State any two methods of quarrying

Last Answer : The process of taking out stones from natural rock beds is known as quarrying of Stones. Methods: a) Digging b) Heating c) Wedging d) Blasting

State the role of civil engineering in human life

Description : State the role of civil engineering in human life

Last Answer : The Civil Engineering plays an important role in human life in the following ways: 1. Designing and construction of infrastructure 2. Includes roads, bridges, dams, canals, buildings, water supply ... 4. Water supply for drinking, agriculture, waste disposal etc. is also done by civil engineers.

State the uses of (i) Glass Fibres (ii) Asbestos Fibres.

Description : State the uses of (i) Glass Fibres (ii) Asbestos Fibres. 

Last Answer :  Uses of Glass Fibres : 1. Used as filter in air conditioners. 2. Used as fine aggregate for finishing plaster to reduce cracking. 3. Used with plastic to produce glass reinforced plastic (GRP), ... 5. It is used for thermal insulation work for pipe line. 6. Used in electrical insulation work.

State the properties of an ideal varnish.

Description : State the properties of an ideal varnish. 

Last Answer : 1. It should render the surface glossy. 2. It should dry rapidly / quickly. 3. It should form hard, durable, flexible film on painted surface. 4. It should not be affected by atmospheric action. 5. It should stick easily to surface. 6. It should not shrink / cracks after drying. 

State the situations where oil paint and distempers are used.

Description : State the situations where oil paint and distempers are used.

Last Answer : situations where oil paint are used: 1. It can be used on dry surface (damp free), on wood & metal works. For enhancing the appearance. 2. To protect the metals works from corrosion. 3. To ... Used on wall boards. 3. To enhance the appearance of plaster. 4. To increase life of plaster. 

State the applications of soils as a construction material.

Description : State the applications of soils as a construction material. 

Last Answer : Soil is naturally obtained from disintegration of rocks when they are exposed to atmosphere by weathering agents like sun, wind, rain, frost etc. Applications of Soil : Soil is used as construction and ... is used in manufacturing of bricks and tiles. Sand from soil is used in filter bed.  

State the materials required for irrigation structures in general.

Description : State the materials required for irrigation structures in general. 

Last Answer : 1) Cement 2) Aggregate 3) Sand 4) Soil 5) Brick 6) Fly Ash 7) Tiles 8) Stones 9) Steel 10) Bitumen etc. 

State the materials for different civil engineering structures.

Description : State the materials for different civil engineering structures. 

Last Answer : 1. Natural materials- Stone,Sand,Timber etc.. 2. Artificial materials- Brick, Tile, Cement etc. 3. Special materials- Fibre, Bitumen etc. 4. Finishing materials- POP, Wall Cladding etc.  5. Recycled materials- Fly Ash, Rice Husk etc.

Define rice husk. State the uses of rice husk.

Description : Define rice husk. State the uses of rice husk.

Last Answer : Rice Husk: - The outer most layer of paddy grain is called as rice husk. It is separated from Brown rice in rice mill. It has high silica content. Rice Husk is highly resistant to moisture ... for concrete and board. 4) Used in generation of heat energy, stream energy and electricity generation.

State the properties and uses of varnishes.

Description : State the properties and uses of varnishes.

Last Answer : Properties of varnishes: 1) It should render the surface glossy. 2) It should dry rapidly or quickly. 3) It should not shrink or show cracks after drying. 4) The protecting film ... 2. Brightening coats of the painted surface. 3. Improving appearance and ornamental gains of wood surfaces.

State the uses of fly ash and blast furnace slag.

Description : State the uses of fly ash and blast furnace slag.

Last Answer :  I) Fly ash The various uses of fly ash are: 1) Concrete production, as a partial substitute material for Portland cement. 2) For the construction of embankments and other structural fills. 3) For ... and water proofing. 5) It is used as insulation in mineral wool, in rail road ballast etc.

State the Properties of thermal insulating materials.

Description : State the Properties of thermal insulating materials.

Last Answer : Properties of thermal insulating materials: 1) Thermal insulating should be bio resistant and dry. 2) Thermal resistant should be chemically resistant and fire proof. 3) Thermal resisting ... in the moisture content in the material, the coefficient of thermal conductivity rises greatly.

Define artificial Sand. State the Uses of artificial Sand.

Description : Define artificial Sand. State the Uses of artificial Sand.

Last Answer : Definition of Artificial Sand: The sand which is obtained from stone crusher after crushing the natural stone. Uses of Artificial Sand: 1.It is used in manufacturing of concrete. 2.it is used for ... 5. It is used in road construction. 6. It is used as fine aggregates for concrete.

Explain various types of Cement and also state the uses.

Description : Explain various types of Cement and also state the uses.

Last Answer : Following are the various types of cement: 1.Ordinary Portland Cement:-  This Cement is the basic Portland cement and is used in general for most of the construction work. this cement is used at situations ... agent to the ordinary cement. Uses: It is used for making pre cast products.

Define plaster of Paris. State its uses.

Description : Define plaster of Paris. State its uses.

Last Answer : A process which involves exposing the gypsum to very high temperature to create calcium sulphate and then grinding it into a fine white powder is known as plaster of Paris. Uses of Plaster of Paris:- ... , wall boards, structural tiles, statue etc. It is used for metal filling etc.

State the characteristics of good brick.

Description : State the characteristics of good brick.

Last Answer : Characteristics of good brick: 1. The brick should have uniform size and plane, rectangular surfaces with parallel sides and sharp straight edges. 2. The brick should have a uniform deep red or ... impression is made.  8. When two bricks are struck together, a metallic sound should be produced.

State the uses of veneers and Laminated Boards:

Description : State the uses of veneers and Laminated Boards: 

Last Answer : Uses of Veneers: 1) They are used for making plywood.  2) They are used for making particle boards.  3) They are used for making decorative laminates.  4) They are used for making sunmica and formica. ... .  3) It is used for making false ceiling.  4) It is used for wall cladding.

Enlist the different sound insulating materials and also state their suitability.

Description : Enlist the different sound insulating materials and also state their suitability. 

Last Answer : Different sound insulating materials: 1) Asbestos , 2) rock wool , 3)glass ,4)silk, 5)Han felt 6) Mineral wool boards, 7)cane fibers. 8) Acoustical plaster boards and tiles 9 ... tiles and acoustic plaster are suitable where absorption of sound required from tile to tile should be uniform.

State the requirements of a good building stone.

Description : State the requirements of a good building stone.

Last Answer : 1) It should have high crushing strength more than 100 N/mm2. 2) It should have high durability. 3) Hardness should be more than 14. 4) It should have pleasing appearance and should ... It should have good weathering resistance. 11) It should have high impact value and high toughness index.

Define baggage. State its uses.

Description : Define baggage. State its uses. 

Last Answer : Bagasse is the fibrous residue left after sugar cane stalks are crushed to extract juice. It is a waste by - product of sugarcane production process. Uses: i) Sugarcane bagasse ash ... chemical stabilizer in compacted soil blocks. iv) It improves the mechanical properties in concrete formulation.

State any two types of glass along with its uses.

Description : State any two types of glass along with its uses.

Last Answer : Following are the types of Glass and its uses 1) Silica Galss : It is used for fibrous glass, rod, tubing, optical windows, laboratory ware and ultra violet transmitting filters. 2 ... Glass : It is used for industrial piping, cooking utensils and high temperature thermometers, laboratory ware

State the factors affecting selection of construction materials.

Description : State the factors affecting selection of construction materials.

Last Answer : Following are the various factors being considered for selection of construction material. 1) Prescribed load: It is a design load which can be taken by the construction material. The ... the eco-system of environment and the required material should be eco-friendly or environmentally friendly.

State properties of good mortar

Description : State properties of good mortar

Last Answer : Following are the properties of a good mortar: 1) It should be capable of developing good adhesion with the building units such as bricks, stones, etc. 2) It should be capable of ... not develop cracks and they should be able to maintain their appearance for a sufficiently long period.

State the situations where following paints are used: (i) Oil paints (ii) Distempers (iii) Varnishes (iv) Cement paints

Description : State the situations where following paints are used: (i) Oil paints (ii) Distempers (iii) Varnishes (iv) Cement paints

Last Answer : Situations where following paints are used: 1) Oil paints: structural steel members to protect from corrosion, wooden doors and windows, walls, ceilings, to protect from insects. 2) Distempers : ... wood surfaces. 4) Cement paint: on external walls of building, stone masonry, concrete surfaces

State the applications of geo-polymer cement.

Description : State the applications of geo-polymer cement. 

Last Answer : Application of geo polymer cement: 1) It is used in geo-polymer concrete, as a substitute for ordinary Portland cement. 2) It is used in transportation like roads, Bridges, embankment etc. ... is used in manufacturing of pavement blocks. 5) Geo-polymer cement has off shore application also.

State situations where sound insulating and damp proofing materials are used.

Description : State situations where sound insulating and damp proofing materials are used. 

Last Answer : Situations where sound insulating materials are used: 1) Glass, mineral wool mats, are used as sound insulators as solid inner layers underneath floors, 2) Wood fibre and asbestos cement slabs are used ... in toilet floors of upper story, so that no dampness will occur in slab below that floor.

State suitability of: (i) Water proofing materials and (ii) Sound insulating materials

Description : State suitability of: (i) Water proofing materials and (ii) Sound insulating materials

Last Answer : i) Suitability of water proofing materials: 1. Concrete, Bricks, Stones, plaster have tendency to get deteriorate, hence leakage of water may occur in slab, beam, columns. Bitumen and tars ... noise. 6) Acoustic tiles and acoustic plaster are suitable where absorption of sound is required.

State the role of civil engineer in the field of transportation engineering.

Description : State the role of civil engineer in the field of transportation engineering.

Last Answer : Role of civil engineer in the field of transportation engineering. 1. To maintain safety, adequacy and economy in the means of transport for the need of society. 2. Civil engineer work ... . Remote areas and rural areas become accessible and communicable if connected by proper means of transport.

State any two uses of "Plaster of Paris".

Description : State any two uses of "Plaster of Paris".

Last Answer : Uses of Plaster of Paris. 1. It is used as architectural decoration material for false ceiling, cornices and other decorative feature in interior finish. 2. It is used for making casts for statues. 3. It is used for wall plasters, wall board etc. 4. Ornamental work.

State the factors on which the selection of type of materials depend.

Description : State the factors on which the selection of type of materials depend. 

Last Answer : Factors for selection of materials. 1. Carry prescribed loads: The most significant requirement of a material used in civil engineering project is that it should be able to carry the design loads ... such as floor coverings, paints, and doors and window are chosen based on aesthetic consideration.

Explain about geo synthetics materials. Mention application of it

Description : Explain about geo synthetics materials. Mention application of it

Last Answer : Geosynthetics are man-made materials used to improve soil condition. Geo means earth or soil and synthetics means man made. Geo grids, geo textiles, geomembranes, geo cells are some of the ... hill sides. h) Reinforced soil- soil walls, bridge abutments, culverts, bridges, soil arches

Explain defects in timber with neat labeled sketches

Description : Explain defects in timber with neat labeled sketches

Last Answer : a) Knots: These are the bases of branches which are broken off from the tree. This occurs because of improper cutting of tree. b) Shakes: These are cracks in the timber which appear due to excessive frost or ... of timber f) Bow: This is bending along the longer side of timber.

Explain the method by which waterproofing of existing old slab can be done.

Description : Explain the method by which waterproofing of existing old slab can be done.

Last Answer : i) Clean the slab ii) Expose cracks by tools and make them V' shaped. iii) Fill mix of cement mortar iv) Fill brick bats and sand over the slab v) Sprinkle cement slurry and paste of water proofing ... tiles over the layer of cement mortar 1:3 vii) Cure it for 3 days and slab is water proof.

Suggest the type of glass used for the following work: i) Making panel of partition wall ii) Cashier Cabin iii) Skylight iv) Door Shutter

Description : Suggest the type of glass used for the following work: i) Making panel of partition wall ii) Cashier Cabin iii) Skylight iv) Door Shutter

Last Answer : i) Making panel of partition wall: Block glass OR Sheet Glass OR chipped and ground glass OR soda lime glass ii) Cashier Cabin-Polished plate glass OR bullet proof glass OR soda lime glass OR laminated ... clear window glass or lead glass iv) Door Shutter: Soda lime glass OR tempered glass

Explain two properties and two uses of sand.

Description : Explain two properties and two uses of sand.

Last Answer : Properties: a) It is a naturally occurring granular material composed of finely divided rock and mineral particles. b) It is obtained by dredging of river, hence harmful for the ecosystem. Uses of sand: ... ) Manufacture of bricks d) Used in filtration of water e) Used to make casts.