May 10, 2019· Manufactured sand is far more better than river sand. I did a project on comparison of concrete made of M-sand and river sand. Advantages of M-sand are: 1. 100 % replacement to natural sand and it is one of the byproduct of aggregates 2. No scarci...
River Sand is usually obtained from River Beds and Banks. It is usually very fine in quality and has a white-grey color. River Sand is good for all construction activities like concrete production and plastering as it is well graded. As per the Indian Standard codes, sand used in preparation of concrete and in plastering should ideally confirm to IS-383 Zone-II.
Ever available MATERIALS USED : Fine aggregate Coarse aggregate Robo sand Cement Project procedure : 1) Casting cubes by replacing robo sand with fine aggregate in 10,20,30 percentages respectively. 2) Testing the compressive strength of cubes by curing them for 7,21,28 days..
Venu Malagavelli et. al. / International Journal of Engineering Science and Technology Vol. 2(10), 2010, 5107-5113 This paper presents the study of compressive strength and split tensile strength of M30 conventional concrete by replacing the 0 to 30% (5% increment) of sand with ROBO sand and 40 to 60% of cement with GGBS.
Concrete is the most widely used composite construction material. Fine aggregate plays a very important role for imparting better properties to concrete in its fresh and hardened state. Generally, river sand was used as fine aggregate for
Concrete Strength. Higher concrete strength compared to river sand used for concreting. Lesser concrete compared to M Sand. Silt Content. Zero silt. Minimum permissible silt content is 3%. Anything more than 3% is harmful to the concrete durability. We can expect 5 - 20% slit content in medium quality river sand. Over Sized Materials. 0%.
1) If there is more silt in coarse sand, the strength of cement mortar is reduced from 1 % to 30%. 2) If you take best quality coarse sand, it will give maximum strength. WASH the sand before use so that silt contents should be reduced, the problem of cracks is mainly due to silt contents. See the Article below
Self-compacting concrete is identified as " highly flow able " and stable concrete that can spread readily into place and fill the formwork without any vibration and without undergoing any significant segregation. The design of concrete mix
Robo Sand - Buy Robo Sand at best price of Rs 1000/ton from New Tech Concrete Products. Also find here related product comparison | ID: 13520890348
High performance concrete with GGBS and ROBO sand.pdf Venu Malagavelli et. al. / International Journal of Engineering Science and Technology Vol. 2(10), 2010, 5107-5113
Ground-granulated blast-furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder.Ground -granulated blast furnace is highly cementitious and high in CSH (calcium silicate hydrates) which is a strength enhancing ...
Jan 13, 2020· Mortar mix is a critically important building component that must be combined thoroughly. Mortar is the bonding material between bricks, concrete block, stone, and many other masonry materials.It is made from Portland cement, lime, sand, and water in varying ratios. Each of the standard mortar mixes—Types N, M, S, and O—has different performance characteristics for different building ...
Robo Sand Ask Price It is the perfect substitute for river sand. The Product is manufactured as per IS 383-11970 specifications and confirms to zone-ii standards.
Nov 10, 2017· Answered Differance between Robo sand and p-sand and their advantages regarding to strength. Thread starter Sameer shaik; Start date Nov 9, 2017; Sameer shaik Newbie. Sep 20, 2017 7 2 Bangalore. Nov 9, 2017 #1 Difference between Robo sand and P-Sand,strength varaiance between them . Reactions: Basith and Er. Yuvraj Bhavsar. Chetan Yadav. Staff ...
Apr 01, 2013· FINAL PRODUCT (ROBO SAND) 8. HOW ROBOSAND IS SUPERIOR TO RIVER SAND Particle ShaPe high-comPreSSion Strength greater Durability truckloaDS of aDvantageS DoeS away with conStuction DefectS SuPerior Qualit greater economy SavingS eaSy availabilty 9.
May 25, 2018· Msand vs river sand vs both mixed strength test. Msand vs river sand vs both mixed strength test. Skip navigation ... Robo sand or m sand detail information and it's uses - Duration: 10:22.
Traditionally, Ordinary Portland Cement concrete is used for making the civil structures. Portland cement can be replaced by Ground Granulated Blast Furnace Slag (GGBFS) which is a non-metallic and non-hazardous waste of the Iron industry. It is suitable for concrete mix and improves properties of concrete like compressive strength, workability etc.
Tue Jul 24, 2012: Post #1: S L Gupta (Civil Engg) Join date: Mar 2008: Dear Prakash. Coarse sand is better than fine sand. In cement masonary and conc. with coarse sand give more strength than fine sand, Coarse sand have less superfacial area than fine sand hence it gives more strength.In coarse material there is less shirankage which add to strength.
Replacing cement with GGBFS for 40, 50, 60% and sand with ROBO Sand for 40, 60, 80% and combination of both GGBFS and ROBO sand has shown decrease in strength when compared with control concrete. Compressive strength was found to be in the range of 56.4 to 61.5 Mpa for 28 days aged concrete and from 67.9 to 72 Mpa for 56 days aged concrete and ...
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Underground Cables Need a Proper Burial. ... and possibly approach 300°C-cm/W for a dry uniform sand. (The dry thermal rho of a properly designed and installed thermal backfill should be less than 100°C-cm/W and possibly as low as 75°C-cm/W). ... allows it to be broken up with a backhoe if required. If a higher strength is required, the ...
Nov 04, 2016· ROBO SAND AN ALTERNATIVE TO RIVER SAND 3. ROBO SAND INTRODUCTION MANUFACTURE OF ROBO SAND HOW ROBO SAND IS SUPERIOR TO RIVER SAND MONITORING QUALITY OF ROBO SAND ADVANTAGES CONCLUSION 4. INTRODUCTION Robo sand is an ideal substitute to river sand. It is manufactured just the way nature has done for over a million of years 5.
Advantages of Manufactured Sand (M-Sand) It is well graded in the required proportion. It does not contain organic and soluble compound that affects the setting time and properties of cement, thus the required strength of concrete can be maintained.
Plot 1 28-days Compressive strength of Robo sand and Conventional concrete From Plot 1 it is observed that the compressive strength of robo sand concrete is more when compared to conventional concrete. The improvement in compressive strength is as high as 26.48 %. The increase in robo sand concrete natural sand concrete
A GREEN REVOLUTION FOR FUTURE CONSTRUCTION. Robo Silicon, for the first time in India, introduced "Manufactured Sand" as a viable, cost-effective and an eco-friendly alternative to the precious and fast depleting natural resource -river sand.. Robo Silicon is the first company to brand its sand as "ROBOSAND TM ".It is manufactured just the way nature has done for over a million years.
Experimental Investigation on Compressive Strength Of M30 And M40 Grade Of Concrete With Partial Replacement Of Natural Sand by Robo Sand And Cement By Flyash Concrete is a mixture of cement, fine aggregate, coarse aggregate and water.
May 07, 2020· What are the advantages and disadvantages of using Robo sand or M-sand instead of natural sand in concrete of footings, columns, and slab? ... it provides higher concrete strength compared to river sand. it's cheaper than river sand. it's eco-friendly since m sand uses natural coarse aggregates to form. 1; Share. Share.
of cement with GGBS and 25% of sand with ROBO sand. Luo et al.  experimentally studied the chloride diffusion coefficient and the chlorid e binding capacity o f Portland
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