Lightweight aggregate concrete book

Pdf structural lightweight aggregate concrete offers several benefits as. This book is written to give an overall picture of lwac, from the. Applications of lightweight aggregate concrete researchgate. It presents and interprets the data on lightweightaggregate concrete from many laboratory studies, accumulated experience resulting from successful use, and the performance of structural lightweightaggregate concrete in service. Aci 2r14 guide for structural lightweightaggregate. The production of lightweight aggregate concrete has been expanding to include all types ranging from nofines concrete of low density, mainly for block production, to structural concrete with densities from to 2000 kgm 3 and compressive strengths up to 80 mpa. Structural lightweight aggregate concrete crc press book.

Coarse aggregate may be available in several different size groups, such as 19 to 4. The primary use of structural lightweight concrete slwc is to reduce the dead load of a concrete structure, which allows the structural designer to reduce the size of the structural members like beam, column, and footings which results in reduction of earthquake forces on the structure. Early notable lwc structures include the port of cosa, the pantheon dome, and the coliseum. Science, technology and applications construction materials science and technology series kindle edition by chandra, satish, berntsson, leif. Complete replacement of normal weight fine aggregate with a lightweight aggregate will decrease the concrete density by approximately 10 lbft3 160 kgm3. Based on the classification of lightweight concrete according to the level of compressive strength and aggregate type by mindess and young 4, lightweight aggregate concrete using artificial lightweight aggregate alwa or lightweight coarse sintered fly ash and foamed slag aggregates can produce compressive strength values of 1741 mpa with a. Use features like bookmarks, note taking and highlighting while reading lightweight aggregate concrete. Aci 2r14 guide for structural lightweightaggregate concrete author. Read lightweight aggregate concrete online by satish chandra. Escsi reference manual for properties and applications of expanded shale, clay and slate lightweight aggregate.

It presents and interprets the data on lightweight aggregate concrete from many laboratory studies, accumulated experience resulting from successful use, and the performance of structural lightweight aggregate concrete in service. The authors begin with a brief overview of the historical use of lightweight aggregate concrete, both naturally occurring and artificial, from ancient times to the present. Aci 2r03 guide for structural lightweight aggregate concrete and astm 169 d lightweight concrete and aggregates both are excellent references. Leca is an example of expanded clay and poraver is an example of expanded glass aggregates. Lightweight aggregate concrete civil engineering community. Click download or read online button to get structural lightweight aggregate concrete book now. This book is written to give an overall picture of lwac, from the historical background, aggregate production, proportioning and production of concrete, to. Wherein, in every cubic metre of selfcompacting lightweight aggregates concrete, cement 400 480kg, flyash 50 90kg, silicon ash 60 80kg, drift.

Lightweight aggregate concrete satish chandra annotation in spite of the increasing use and demand for lightweight aggregate concrete lwac, there is still a lack of adequate explanations to understand the mechanisms responsible for the. This chapter explains several techniques employed for the production of lightweight aggregate concrete. The basic design for lightweight concrete is covered in eurocode 2 part 11, with section 11 having particular rules required for lightweight aggregate concretes. Buy lightweight aggregate concrete construction materials. Lightweight aggregate concrete 9780815514862 by chandra, satish. Lightweight aggregate an overview sciencedirect topics. Lightweight aggregate concrete is undergoing something of a renaissance. If choosing a standard, readily available lightweight coarse aggregate replacement such as expanded shales, clays, slates and slag, one can expect to reduce the weight of a yard of concrete to approximately 95 lbft 3 to 115 lbft 3 1,520 kgm 3 to 1,840 kgm 3 or a maximum potential reduction of approximately 35% by dry weight. Surface modification of lightweight aggregate and properties of the. As a result of this research, design information became readily available and has enabled lightweight concrete to be used for new and novel. Lightweight aggregate concrete 1st edition elsevier. Although this material has been available for many years, only now is it being used more widely.

Mix design and mechanical properties of oil palm shell. Berntsson, leif and a great selection of similar new, used and collectible books available now at great prices. Compressive strength of lightweight concrete intechopen. Lightweight concrete can be manufactured with a combination of fine and coarse lightweight aggregate or coarse lightweight aggregate and normal weight fine aggregate. In spite of the increasing use and demand for lightweight aggregate concrete lwac, there is still a lack of adequate explanations to understand the mechanisms responsible for the strength and durability properties of lwac. Lightweight aggregates can be used to make high strength concrete and designers have known this from their first introduction to concrete construction.

Structural lightweight aggregate concrete download ebook. The aggregates absorption capability is also a gauge of the durability of the concrete when subjected. Laboratory investigation of lightweight concrete properties. Presoaking lightweight aggregate concrete construction. Structural lightweight aggregate concrete 1st edition. The 60story nations bank building in north carolina, usa used presoaked expanded shale lightweight aggregate in 117 mm thick slabs that were supported on posttensioned concrete beams at 3. Lightweight concrete mixture is made with a lightweight coarse aggregate and sometimes a portion or entire fine aggregates may be lightweight instead of normal aggregates. When lightweight concrete had been implemented in the building. Bremner, in developments in the formulation and reinforcement of concrete, 2008. A glossary of the terminology and definitions is included to help practicing architects and engineers tailor a concrete that is. Lightweight aggregate concrete science, technology, and. Structural lightweight aggregate concrete by clarke.

In buildings, structural lightweight concrete provides a higher firerated concrete structure. Structural lightweight concrete also benefits from energy conservation considerations as it provides higher rvalues of wall elements for improved insulation properties. Pdf structural lightweight aggregate concrete by incorporating. Concrete structures are prone to earthquake due to mass of the structures. Lightweightaggregate concrete aci 2r03 the guide summarizes the present state of technology. The porous medium as a lightweight aggregate is a versatile material and important. The density of ops concrete is around 20 25% lower than normal weight concrete. The porosity of lightweight aggregate provides a source of water for. Structural lightweight aggregate concrete lwac offers design flexibility and substantial cost savings by providing less dead load 1. Lightweight aggregate concrete aci 2r03 the guide summarizes the present state of technology.

Lightweight aggregates are used as insulating fill within. Generally, mechanical properties of ops concrete are slightly lower than. Purchase lightweight aggregate concrete 1st edition. Seismic performance of lightweight concrete structures. Read lightweight aggregate concrete by satish chandra,leif berntsson for free with a 30 day free trial. Lightweight aggregate concrete science, technology, and applications details. This is an exlibrary book and may have the usual libraryusedbook markings inside. During the first world war designers of ships and barges used rotary kiln produced lightweight.

In spite of the increasing use and demand for lightweight a. The lightweight concrete floor system was used to minimize dead weight and to achieve a. Concrete is considered to be lightweight is the density is not more than 2200kgm 3 the density of normal weight concrete is assumed to be between 2300kgm 3 and 2400kgm 3 and a. Aci sp218 high performance structural lightweight concrete. Neville suggests producers should expect a wide range of soaking times based upon aggregate types.

Principal research scientist introduction lightweight concrete lwc has been used for more than 2,000 years aci 2r american concrete institute aci, 2003. This book explains different phenomena involved in the design and the microstructure development of concrete in a very simple language. It can be further classified into lightweight aggregate concrete, foamed concrete and nofines concrete mohammed and hamad, 2014. Lightweight aggregate concrete by satish chandra, leif. This book is written to give an overall picture of lwac, from the historical background, aggregate production. Aci sp6 structural lightweight aggregate concrete performance. This is a comprehensive book that considers all aspects of lightweight aggregates and lightweight aggregate concrete. The characteristics of these lightweight aggregates are correlated with thermal conductivity and resistance of concrete slabs made with the lightweight aggregates. Basically two types of light weight aggregates natural aggregates artificial aggregates natural light weight aggregates are less preferred over artificial aggregates. Moisture dynamics in lightweight aggregate and concrete. Buy lightweight aggregate concrete construction materials science and technology series book online at best prices in india on.