International Journal of Civil, Mechanical and Energy Science (IJCMES) [Vol-3, Issue-2, Mar-Apr, 2017] https://dx.doi.org/10.24001/ijcmes.3.2.8 ISSN: 2455-5304 www.ijcmes.com Page | 130 Durability Aspects in Reference to Permeable Voids and Leaching of Calcium Hydroxide in Concrete with Quarrysand and Flyash R. S. Deotale 1 , Dr. A. M. Pande 2 1 Associate Professor, Civil Engineering Department, Yeshwantrao Chavan College of Engineering College, Wanadongari, Nagpur, India 2 Director, R&D, YCCE & Professor Civil Engg. Department,Yeshwantrao Chavan College of Engineering College, Wanadongari, Nagpur, India Abstract— The concrete industry is constantly looking for supplementary cementitious material with the objective of reducing the solid waste disposal problem. Fly ash (FA) and Quarry sand (QS) are some among the solid wastes generated by industry. The Quarry sand is one such material which can be used to replace sand as fine aggregate. To overcome from this crisis, partial replacement of natural sand (NS) with Quarry sand and partial replacement of cement with FA can be an economic alternative. This research is carried to study the effect of replacement of sand by Quarry sand and cement by fly ash with using admixture in concrete, especially in reference to permeable voids development, compressive strength, leaching of Ca(OH)2 in curing water and RCPT at 28, 56 and 90 days of age. A M25, M30, M40 Grade concrete were chosen for research. The mix design was carried out and three combinations were chosen, first combination using 100% Natural sand and 100% cement ( treated as controlled mix).In second combination 100%Natural sand is replaced by Quarry sand and cement remains100%. In third combination 30% cement is replaced by Fly ash and 45% Natural sand is replaced by Quarry sand (treated as critical mix). These were chosen from 30 combinations of variable % of Natural sand and Quarry sand and fly ash. The study is aim at understanding the performance of critical mix in reference to controlled mix and concrete containing 100% quarry sand. It is observed that if quarry and is used for concrete then suitable percentage natural sand and fly ash must be added to achieve desired compressive strength and performance of concrete. Keywords— Cement, Fly ash (FA), Quarry sand (QS), Natural sand, compressive strength, permeable voids, RCPT. I. INTRODUCTION Concrete is the most widely used construction material in civil engineering industry because of its high structural strength, stability and durability. Recent technological developments have shown that these materials can be used as valuable inorganic and organic resources to produce various useful value-added products. Researches on incorporating industrial waste products into potential construction material to produce sustainable concrete have been on the rise in recently. Fly ash (FA), Quarry sand are such industrial waste products. The researchers focused on using Fly ash and Quarry sand as possible replacement for conventional cement and natural sand. However FA have been investigated as supplementary mineral admixtures in concrete. Quarry sand has been used as a replacement material for Natural sand (fine aggregates). Sustainability has become more and more imperative all over the world, especially in the production of concrete. The global consumption of natural sand is to high due to extensive use in concrete. Utilization of these materials for sustainable concrete which contributes to reduction of environmental pollution as the production of conventional construction materials such as cement and natural sand could be reduced. Substantial energy and cost saving can result when industrial by-product are used as partial replacement for the energy intensive portland cement. The purpose of this research to study the effect of Fly ash and Quarry sand on workability, compressive strengths, permeable voids, pH and Leaching of and Fly ash and comparative reduction in the cost of cement and Natural sand .The detailed experimental investigation is come to study the effect of replacement of cement by Fly ash and Natural sand (Fine aggregate) by Quarry sand. In this research we prepared specimen of cubes for compressive strength test, pH, and leaching test and beams for permeable voids test. Three samples for each set of percentage have been taken for conducting test and average of results are taken. The samples were tested at the age of 28 days and 56 days 90,180 days. The test on hardened concrete are compressive strength test as per IS: 516-1959, Methods of sampling and test for Quick lime and hydrated