The weight of compared is high compared to its strength. 8. 2. A concrete roof is a solid slab of concrete capping the top of a building. Some of the disadvantages of hydrophobic cement are as follows: This cement does not work on the frozen surface. Disadvantages of cement plaster: This plaster is mainly weak in tension and flexural strength, due to this fact liable to cracking. As I have stated in other "answers" there is no a "one size fits all solution!" A STRUCTURAL SOLUTION is always ECONOMICALL. 2. The concrete maintenance process is very easy and the maintenance cost is low. It became more popular than wooden roofs during the late 1920s and 1930s due to its resistance to fire, termites, and rot. Advantages: * Robust. Therefore, when rainwater combines with concrete (plus its lime and carbon dioxide), a chalky element appears on the roof's . Answer (1 of 8): First of all, I think it is better to part from the advantages and disadvantages of concrete. The sand and cement are mixed at the site in different ratios. Its tensile strength is very low of the order of 10% of the compressive strength. Speed in the construction practices. The Thickness of cement plaster may vary and it depends on the surfaces to be . (problems are known with torsion and pressure but it is a . 14. In colour mixing, chemical changes usually do not occur. To avoid the development of cracks, steel is used as reinforcement. Answer: ECONOMICS drives all construction! Cement vapor is not 100% permeable to water vapor. What Is A Concrete Roof? Ability to pump/spray to fill into cracks and lining of tunnels. The thickness of cement plaster should not be less than 10 mm. It was very common in the United States in the late 1800s, during a time when construction materials were limited. The Concrete fairly acts as thermal insulation. Disadvantages of Concrete Pavers. Disadvantages of Concrete Compared to other binding materials, the tensile strength of concrete is relatively low. Despite a few disadvantages, plaster walls have some significant . This plaster is not a rust inhibitor. 12. The best/economical framing system depends on numerous factors, such as building usage (imposed loads), architectural design, etc. No case of stresses due to handling and driving and hence no extra . Cobblestone Pavers More durable structure. . . Also, has more or less identical acoustics properties. Porous. This cement solves the problems due to leakage but is not able to solve the problems due to condensation. Advantages of concrete:compression member.slabs.beams.shear walls.Disadvantages:Non-renewable source.Mix design should be known.Skilled labour . Soluble salts cause efflorescence. Cement is not very useful per se. Cement plaster is a homogeneous mixture of Portland cement and sand with water. 11. Concrete has better water insulation compared to others. Clay tiles absorb water at a rate of around 6%, while concrete tiles absorb water at a rate of about 13%. Concrete is less ductile. Discover the material's pros and cons to decide if it's just what your remodel or new home construction needs. Thus it develops cracks. Reduce the consumption of cement by 10 - 12%. Rare In New Homes - this may be a con, but being part. Concrete has following disadvantages: 1. Concrete may contains soluble salts. Concrete floors are colored using dyes and pigments. 13. It is used on both internal as well as external surfaces. While drywall doesn't burn fast, it doesn't offer much protection. The advantages and disadvantages of the two innovative combination curing methods and the early curing effects on the construction of a box . Advantages of concret The following are the advantages of concrete : Availability of concrete ingredients easily. Due to rise in temperature, concrete expands and due to fall in temperature it shrinks. Deterioration of concrete is less. The reasonable temperature control of concrete box girders can prevent early concrete cracking and ensure concrete quality, but box girder temperature control becomes an important focus in construction. Easy transportation from the place of mixing to place of casting before initial set takes place. 1. The finished product is often strong and appropriate for both on- and off-road use. Wastage of material is less as only the required length is cast. ADVANTAGES OF CAST IN SITU CONCRETE PILE. Easy handling and moulding of concrete into any shape. This special cement can not be used below the temperature of 40F or 4C. Fig 7: Concrete Pavers Advantages of Concrete Pavers. Disadvantages of Hydrophobic Cement. It has more or less thermal conductivity. Following are the advantages of Ready-Mix Concrete: Concrete is produced under controlled conditions hence quality concrete is obtained. Copy. 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