Page 1 of 50 - About 500 essays
  • Concrete And Concrete Of Concrete

    1998 Words  | 8 Pages

    Pretension concrete, also known as prestressed concrete, is one of the methods to give more strength to the natural weakness of concrete through tension. The way this works is by allowing the tendons to cure in the concrete. After it has cured the tendons are released and the tension is applied. “The analysis for continuous prestressed composite beam covers: load deflection behavior, strain and stress in concrete slab and steel beam, force in shear connector, slipping between concrete and steel

  • Concrete Pillars Of Concrete Granite

    1553 Words  | 7 Pages

    Concrete slab is above Earth foundation type with a single layer of concrete with thickness of typically about 4 inches to 6 inches and sometimes reinforce with steel rods. Steel rods or rebar have a function to make the slab extremely strong and capable of bearing the load. The edges of the foundation are usually thicker as to allow for more strength around the load in this case, the live load and static load of rainwater tank. This type of foundation also may be used with the base soil of low bearing

  • Concrete Structure Of Concrete Structures

    1370 Words  | 6 Pages

    The behaviour of concrete under a load is an important phenomenon that has to be considered while evaluating and analysing concrete structures. Concrete is one of the most widely used construction materials in the world. So it is essential to understand what concrete is and the properties associated with it. For more than 200 years, this artificial conglomerate stone made up of cement, water and aggregates, has been accepted for its long-lasting and dependable nature. In addition to durability, its

  • Advantages Of Concrete

    1641 Words  | 7 Pages

    1.0 INTRODUCTION 1.1 CONCRETE: Concrete is a composite material formed by combination of cement, fine aggregates, coarse aggregate and water together in a suitable proportion. This mix form easily workable paste known as plastic wet or green concrete. After mixing and placing the concrete in position the cement and water undergoes hardening, the cement paste in this way bind the aggregate like hard mass, which is called concrete. Now a days concrete is used most commonly as a building material because

  • Case Study : Concrete Steel Concrete

    2083 Words  | 9 Pages

    Case Study # 4 - Concrete Pumps Portland cement concrete has been used in the field of construction since the early Roman empire, but until the early twentieth century transporting concrete to great heights or distances was a big challenge. With the invention of the concrete pump handling concrete using wheelbarrows or buckets became obsolete because they require less man-power and can reach those hard-to-get places with ease. There are three types of concrete pumps being used in construction today:

  • Foam Concrete

    3060 Words  | 13 Pages

    Foam concrete advantages Foam Concrete is normal concrete with bubbles of air inside. Therefore it has the same characteristics with many additional advantages. CLC (foam concrete) blocks are used for building cottages, wall insulation in multistory buildings and internal partitions. Also CLC can be produced and poured for floors and roofs on-site. In roofs it can be used because of very good insulating and lightweight. For floors CLC offers faster installation and a less expensive option because

  • Roman Concrete

    515 Words  | 3 Pages

    The development of both the arch and concrete have significant roles in the life of Rome, and their use have great results. They showed how the Romans thought and who they believed. Roman concrete was a material used in construction. It was based on hydraulic-setting cement. Roman concrete was different from modern concrete. Roman concrete was durable to its incorporation of volcanic ash preventing cracks from spreading out. Roman sculpture is learnt from the Greeks and the Etruscans. It reached

  • High Performance Concrete : High Quality Concrete

    1493 Words  | 6 Pages

    High-Performance Concrete 1. Introduction Products that last longer are called, high- performance products. Properly proportioned and cured mixtures of super-plasticized concrete, with 0.4 or less w/cm, show a little or no permeability. In fact, super-plasticized concrete mixtures made with blended portland cements containing mineral additives exhibit unusually low permeability ratings in the ASTM C 1202, Rapid Chloride Penetration Test. However, high-performance concrete almost always has

  • The Cold Side Of Concrete

    797 Words  | 4 Pages

    winter. The cold injury of concrete are that flake peeling is caused by the freeze thaw damage of concrete surface material and internal damage produced in the concrete may lead to concrete properties. Prevention the cold damage of concrete in winter construction is important. According to the article, “Energy-Efficient Approach to Cold-Weather Concreting”, Barna, Seman, and Korhonen(2011) introduce a new approach to cold-weather concreting which is antifreeze concrete. They thinks that traditional

  • Disadvantages Of Silica Concrete

    8723 Words  | 35 Pages

    Infrastructure development across the world created demand for construction materials. Concrete is the most important construction material. Concrete is a mixture of various ingredients like aggregates, water and admixture. Aggregate form is the major part of concrete among the entire ingredients used in concrete. The use of normal weight of aggregate such as gravel and granite probably reduces the natural stone deposits and it cause effect on environment