Cellular Concrete is a cementitious paste of neat cement or cement & fine sand with a multitude of micro / macroscopic discrete air cells uniformly distributed throughout the mixture to create a ...
This document classifies and briefly explains eight types of concrete: 1) Plain Cement Concrete, 2) Lime Concrete, 3) Reinforced Cement Concrete, 4) Pre-stressed Cement Concrete, 5) Light-weight Concrete, 6) Cellular or Aerated Concrete, 7) Saw Dust Concrete, and 8) Vacuum Concrete. It provides details on the typical ingredients and properties ...
Cellular lightweight concrete (CLWC) is a mixture of cement, water, and pre-formed . This material is mixed to a pumped into any void and specified density. The …
7. 3-Aramid Aramid fibres are two and a half times as strong as glass fibres and five times as strong as steel fibres, per unit mass. Due to the relatively high cost of these fibres, aramid-fibre-reinforced concrete has been primarily used as an asbestos cement replacement in certain high-strength applications. 4-Carbon Carbon fibre is more expensive than other fibre …
Cellular Lightweight Concrete (CLC) also known as ed concrete is one of the most significant type of concrete used for construction purposes due to its various advantages and usages over traditionally produced concrete.
• Solid slab system • Beam slab system • Cellular system • All the three types are basically the same, consisting of a large, generally unbroken area of slab covering the whole or large part of structure. ... Later on, when the …
Cellular concrete is a type of lightweight concrete. American Institute of Concrete (ACI) in 523 defines the cellular lightweight concrete as ''a mixture of cement, water and preformed ". The purpose of the is to supply a production mechanism of a high ratio of air cells that when they are mixed with cement produce a porous ...
Lightweight concrete can be defined as a type of concrete which includes an expanding agent in that it increases the volume of the mixture while giving additional qualities such as inability and ...
3. Construction Joints They are placed in a concrete slab to define the extent of the individual placements, generally in conformity with a pre determined joint layout. They must be designed in order to allow displacements between both sides of the slab. They have to transfer flexural stresses produced in the slab by external loads. They must allow horizontal …
This type of concrete mainly used to reduce the dead weight of the concrete with same load carrying capacity like normal concrete. • It is achieved by using light weight aggregate or by introducing air bubbles in mortar or by omitting fines (fine aggregate). ... Aerator or Cellular or ed concrete: • This concrete is achieved by ...
A Brief description on Light weight Construction Materials and detail of Types of ed Concrete. – PowerPoint PPT presentation . Number of Views:115. Slides: 16. Provided by: NCUGuragaon. ... aerated or cellular concrete involves the addition of a gas-forming admixture like aluminum powder to a wet mortar mix followed by autoclave
4. GEC LAKHISARAI 4 INTRODUCTION • CLC(Cellular Lightweight concrete) brick is a material composition for wall building made of Portland cement water and fine aggregate blended with ing agent • Global warming and environmental pollution is now a global concern cellular light weight technology block can be used as an alternative to the red brick.
8. 2.Silica fume concrete • Very fine non-crystalline silica produced in electric arc furnaces as a by product. • Highly reactive pozzolan used to improve mortar and concrete. • Silica fume in concrete produces two types of effect viz. • Physical effect • Chemical effect • The transition zone is a thin layer between the bulk hydrated cement paste and the aggregate …
Medium Density Cellular Concrete. The density range of this cellular concrete is 800-1000 kg/m3. The major use of this type of cellular concrete is found in the manufacturing pre-cast blocks for non-load-bearing brickwork. 3. Light Density Cellular Concrete. Light density cellular concrete has a density in the range of 400 –600 kg/m3.
9 Aerated Concrete Aerated concrete is made by introducing air or gas in to the slurry. It is also referred as gas concrete or concrete or cellular concrete.
2. Lightweight concrete is a special concrete which weighs lighter than conventional concrete. Density of this concrete is considerably low 300kg/m3 to 1850kg/m3) when compared to normal concrete. It may also be defined as: …
This document discusses different types of cofferdams used in construction projects. It describes earth-fill, rock-fill, single-walled, double-walled, crib, cellular, concrete, suspended, and sandbag dike cofferdams. For each …
Types of cellular concrete. Bellow, are going to explain some of the different types of cellular concrete. Pure cellular concrete. Portland cement, water, and prepared or gas are used. It has no solid aggregates.
2. Introduction: Light weight concrete is a special concrete which weighs lighter than conventional concrete. Density of this concrete is considerably low (300 kg/m3 to 1850 kg/m3) when compared to normal concrete …
Temperature of concrete 50 – 300 Ideal 300 – 600 (Reduction in UPV up to 5%) Below 50 (Increase up to 7.5%) 4. Moisture condition of concrete (pulse velocity is proportional to moisture content) 5. Presence of reinforcing steel (UPV of R/f is 1.2 to 1.9 times than normal concrete) 6. Stress Level in concrete FACTORS AFFECTING TEST RESULTS
Concrete mixers are devices that uniformly mix the ingredients of concrete to form fresh concrete. There are four main types of concrete mixers: twin shaft mixers, which provide high intensity mixing for high strength concrete; vertical axis mixers, commonly used for smaller batches and colored concrete; drum mixers, used for large volumes and production speed; …
5. " " 5 compacted lightweight aggregate concrete is mainly used for two purposes that is for precast concrete blocks or panels and cast in-situ roofs and walls. The main requirement for this type of concrete is that it should have adequate strength and a low density to obtain the best thermal insulation and a low drying shrinkage to avoid cracking Structural …
What is Cellular Lightweight Concrete (CLWC)? Cellular lightweight concrete (CLWC) is a mixture of cement, water, and pre-formed . This material is mixed to a pumped into any void and specified density. The …
1. It helps reduce the dead load 1 . It helps reduce the dead load. The weight of building on foundation is an important factor in the design, particularly in case of weak soil and tall structures. In framed structure, the beam and column have to carry load of wall and floor. If these wall and floor are made of light weight concrete it will result in considerable economy.
The popular construction methodology is composite construction (steel + concrete) The types of long span beams are: 1. Parallel beam approach The parallel beam approach is effective for spans up to around 14 m. ... • This …
Types of cells notes ppt - Download as a PDF or view online for free. ... There are two main types of cells - prokaryotic and eukaryotic cells. Prokaryotic cells were the earliest form of life and lack a nucleus and organelles. Eukaryotic cells are larger and more complex, with a nucleus that contains DNA organized into chromosomes and membrane ...
Autoclaved Aerated Concrete Market - Autoclaved aerated concrete (AAC), also identified with various names including autoclaved concrete, cellular concrete, autoclaved lightweight concrete (ALC), porous concrete, and Hebel Block. This is a precast, lightweight, concrete construction material that simultaneously provides insulation, structure, and mold and fire …
Auto-Claved concrete bricks(AAC) seminar ppt. - Download as a PDF or view online for free. ... .. It is now considered as a new generation brick also known as Autoclaved Cellular Concrete (ACC) bricks or Autoclaved Lightweight Concrete (ALC) ... Types Of AAC Bricks. AAC bricks are currently available in three sizes:- 1. Infill bricks: Size ...
In 1838, cell theory was established which states that cells are the fundamental unit of structure and function in living things, all living things are made of one or more cells, and new cells are produced from existing cells. …