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Comparative study on the effect of Packing Factor on Workability and Mechanical Properties of High Strength Self Compacting Concrete (M70) with different mineral admixtures

Publication Date : 10/07/2015

Author(s) :

V. Mallikarjuna Reddy , Prof. M V Seshagiri Rao.

Conference Name :
4th International Conference on Recent Trends in Engineering & Technology(ICRTET-2015) July 2-4,2015 Organized by SNJB's KBJ College of Engineering,Chandwad,Nashik,Maharashtra,India

Abstract :

Experimental investigation was carried out to know the effect of Packing Factor workability and mechanical properties of mineral admixtures. One set (MIX1) consists of G Micro Silica as mineral admixtures. Second set (MIX2) consists of Fly ash and Micro Silica as mineral admixtures. The work focused on concrete mixes having Packing Factors of 1 1.13 and 1.14. Packing Factor (PF) of aggregate is defined as the ratio of mass of aggregate of tightly packed state in SCC to that of loosely packed state. different proportions of GGBS, Fly Ash, with different binder ratios using NAN-SU design method. mineral admixture when compare to mix with GGBS GGBS as mineral admixture is more when compare t Keywords-Self-Compacting Concrete, silica, Super plasticizer and VMA. Self-compacting concrete having advanced viscosity and workability the moulds without the necessity of using vibrators. High volume of mineral powder is a necessity for a proper self-compacting concrete design [1 limestone powder, Fly Ash, micro this study, the effect of Packing Factor on fresh and hardened properties of compacting concrete has been investigated interacting factors such as water content, aggregate ratio, packing factor, kind and dosage of The main factors on self-compacting concrete are the w since by simply adding them the inter particle lubrication is used is based on NAN-SU method [4 II. This part of the paper presents the specifications of the mixes used for obtaining the workability, compressive strength, split tensile strength and flexural strength of self and Research` 2349-9745, Date: 2-4 July, 2015 tudy ) with different mineral admixtures . Reddy1 , Prof. M V Seshagiri Rao 2 GRIET, Hyderabad, 500090, India, , JNTUHCE, Hyderabad, 500072, India, ---------------------------------------------------------------------------------------------------------------------------------------------------------------- high strength self-compacting concrete with Ground Granulated Blast Furnace Slag The SCC mixes are designed with for differen The study shows that workability is more for mix with Fly Ash as for same PF. Compressive strength of to mix with Fly Ash as mineral admixture Packing Factor (PF), Workability, GGBS, Fly Ash, Micro I. INTRODUCTION properties can easily fill 1]. For this purpose, mineral admixtures such as silica, Rice husk ash and Blast furnace slag can be used investigated. It is apparent that workability depends on a numb aggregate type and grading, fine aggregate to coarse super plasticizers, and the fineness of cement. water and super plasticizer contents of the mix increase. In this research mix design 4]. MATERIAL AND MIX PROPORTION self-compacting concrete. 919 Concrete , , -------------------------------------------------------- on the two sets of round (GGBS) and 1.10, 1.11, 1.12, different Packing Factors by orkability . mix with admixture.

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