The essential requirements of building stones used for structural work are given below: Strength Ordinarily, the strength of a stone is not of primary importance, as very often the loads to which it is subjected in a structure are much below its permissible crushing strength Durability Stones should possess a natural durability to withstand the(…)
Building materials provides information on various modern construction materials that are used these days. It also gives information about aggregates, cement, bricks, woods, reinforcement, light weight aggregates, recycled aggregates and other modern materials used in construction industry.
Damp proof course (DPC) is a barrier of impervious material built into a wall or pier to prevent moisture from moving to any part of the building. Following are the materials generally used for damp proofing of structures: 1) Flexible Materials: The materials, which do not crack and deform their shape when subjected to loading,(…)
Concrete is a mixture of cementitious material, aggregate and water. Aggregate is commonly considered inert filler, which accounts for 60 to 80% of the volume and 70 to 85% of the weight of the concrete. Although aggregate is considered inert filler, it is a necessary component that defines the concrete’s thermal and elastic properties and(…)
Alternate building materials are those which can be used economically by replacing the conventional building materials. Alternate building materials are made from waste products and thus it even minimizes environmental pollutions.
Rapid Hardening Portland Cement (RHPC) Rapid hardening cement is similar to Ordinary Portland cement but with higher tri-calcium silicate (C3S) content and finer grinding. It gains strength more quickly than OPC, though the final strength is only slightly higher. This type of cement is also called as High-Early Strength Portland Cement. The one-day strength of(…)
Cement is defined as the product manufactured by burning and crushing to powder an intimate and well-proportioned mixture of calcareous and argillaceous materials. The cement, which is generally used for preparing concrete, is the Ordinary Portland Cement. But for special purposes other qualities of cement such as Low Heat Cement, Rapid Hardening Cement, High Alumina(…)
Effect of Fire and High Temperature on FRPs The use of externally-bonded FRP plates and sheets to strengthen existing reinforced concrete structures is now widely recognized. However, a primary concern that still discourages the use of FRPs in some cases is their assumed susceptibility to fire. While recent studies have demonstrated that the overall performance(…)
Mechanical Properties of FRPs Many FRPs have tensile strengths that exceed the strength of steel, but their stiffness is generally lower than that of steel. When loaded along the fiber direction they behave essentially linearly until fracture, and are therefore brittle by nature. Stress Corrosion and Stress Rupture The average ultimate tensile strength of freshly(…)
Following table shows the properties components, properties and applications of common wall materials such as various types of bricks, partition boards etc. Wall Materials Composition Properties Applications Fired Common Bricks (including clay bricks,-fly ash bricks, shale bricks, and coal gangue bricks ) Made by sintering the clay materials Compressive strength: 10-30MPa; apparent density: 1500-1800kg/m3;(…)