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Experimental investigation of crushed sand in strength supporting self- actualization of concrete
A. Shelar, D. Neeraja,
Published in IAEME Publication
2018
Volume: 9
   
Issue: 9
Pages: 1504 - 1513
Abstract
Due to speedy development in the subject of concrete technology a massive step in making concrete a high-tech material with improved traits and sturdiness also Urbanization is an increase in the range of humans residing in towns and cities. Urbanization occurs ordinarily because humans pass from rural areas to city areas and it consequences in growth in the dimension of the urban populace and the extent of city areas. Mineral admixtures such as Fly ash ,(FA), Steel Fibers, Ground Granulated Blast furnace Slag (GGBS), Metakaolin, Silica fume and Alccofine are turn out to be unavoidable in high energy concrete due to the fact of their results in hardened concrete properties. Replacing the Ordinary Portland Cement (OPC) by way of mineral admixtures is preserving the herbal assets for future generation. In present situation, replacement of river sand with overwhelmed sand is nearly mandatory due to scarcity of the river sand. Superplasticizers are used to enhance the workability of concrete at low water-cement ratio and enlarge the compressive strength by way of lowering it. In urban infrastructure development, the high electricity concrete is obligatory to limit the measurement of structural member, and to amplify the utility area to carry heavier load. In this learn about M40 and M 50 grade concrete mix was once designed with alternative of OPC by using exclusive sorts of mineral admixtures using river sand and crushed sand along with Polycarboxylate Ether (PCE) based totally superplasticizer. The Compressive strength, flexural power and break up tensile power at a variety of curing durations such as 28 days. The durability houses such as Rapid Chloride Penetration test, Water penetration test and water absorption take a look at have been carried out on the specimens at 28 days. Also, the Drying shrinkage of the concrete used to be tested at 14 days. From the experimental check results it is determined that, all the mixes have been completed the target suggest strength, amongst these the Alccofine with Crushed sand sand combination has executed 10 to15 % greater than the target strength at age of 28 days and different power parameters such as split tensile and flexural strength also barely accelerated in this combination comparatively. The durability testssuch as Rapid chloride penetration, water penetration and drying shrinkage had been performed and the acquired values at the age of 28 days are inside permissible restriction as per the codal provisions and the concrete with crushed sand indicates slightly greater cost than concrete with flow sand. © 2018 IAEME Publication. All rights reserved.
About the journal
JournalInternational Journal of Civil Engineering and Technology
PublisherIAEME Publication
ISSN09766308