Floor slab connection essentially consists of a compression joint in the bearing surface. The bearing length should be atleast 75mm to avoid spalling of the edges. To prevent this short of failure occurring, the slab must be tied to the ...
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AERATED CONCRETE & ITS PROPERTIES
Aerated concrete is made by introducing air or gas into a slurry composed of Portland cement or lime and finely crushed siliceous filler so that when the mix sets and hardens, a uniformly cellular structure is formed. Though it is ...
STRUCTURAL USES OF PRECAST CONCRETE
Precast concrete is used extensively in building structures, for e.g. structural frames, floors and roofs, claddings etc. Use of Precast Concrete in frames: There are two main types of precast building frame. The structural frame consists of slabs, beams and ...
Maintenance of Concrete Structures for Durability of RCC Members
Maintenance of Concrete Structures for Durability of RCC Members Modern concrete is a very durable construction material and, if properly proportioned and placed, will give very long service under normal conditions. Many concrete structures, however, were constructed using early concrete ...
Chloride Attack on Concrete Structures – Cause and Prevention
Chloride Attack on Concrete Structures is one of the most important phenomena we consider when we deal with the durability of concrete. Among all sources of failure of concrete structures, the chloride attack accounts 40% contribution. The main effect of chloride ...
CARBONATION OF CONCRETE STRUCTURES
Carbonation of concrete Structures The microstructure of concrete is such that it has capillary pores to the extent of 28%. The extent of pores depends upon quality of concrete and the presence of water at the time of mixing of ...
Features of Precast Concrete Construction
Precast concrete construction offers several key features such as dimensional accuracy, better finishes, and faster erection which are absent when other method of concrete construction is considered. This article highlights features of precast concrete construction. Features of precast concrete construction ...
Factors Affecting Strength of Concrete
Factors Affecting Strength of Concrete Concrete strength is affected by many factors, such as quality of raw materials, water/cement ratio, coarse/fine aggregate ratio, age of concrete, compaction of concrete, temperature, relative humidity and curing of concrete. Quality of Raw Materials ...