In view this silica fume (SF), ground granulated blast furnace slag (GGBS), rice husk ash, fly ash (FL), metakolin, alccofine (AL), micro fine material, etc.; are tried out for replacing cement partially or fully in concrete, without compromising on its strength, also reduce greenhouse gases and sustainable way of management of waste.
strength of the concrete. Therefore the purpose of this study is to examine the strength of the concrete obtained by the replacement of fine aggregate by the demolished waste concrete and also to find the optimum replacement percentage of the demolished waste concrete. Self-compacting concrete (SCC) is an innovative concrete
methodology for the design of self compacting concrete with ground granulated blast furnace slag (GGBS) for percentage replacements varying between 20% and 80%. 2. Slag activity index (S AI) According to ASTM C989-94a , slag activity index is the per ...
Continued strength gainContinued strength gain ... Recycling of CoarseRecycling of Coarse Screen MaterialScreen Material ... Blast Furnace Slag:Concrete Benefits ...
Oct 19, 2013 · Utilization (recycling) of iron and steel industry by-product (GGBS) in concrete: strength and durability properties. Abstract. Due to exponential growing in urbanization and industrialization, byproducts from industries are becoming an increasing concern for recycling and waste management.
Ggbs As Partial Replacement Of Opc In Cement Concrete An Experimental Study,IJSR - International Journal of Scientific Research(IJSR), IJSR is a double reviewed monthly print journal that accepts research works. 36572+ Manuscript submission, 9855+ Research Paper Published, 100+ Articles from over 100 Countries
plastic waste & Ggbs on tensile properties of concrete. In this test, a concrete cylinder of size 150 mm diameters and 300 mm length is placed with its axis horizontal between the plates of the testing machine. Mix No increase in strength gradually by increase in time.W/C % OF GGBS 28Days Avg split tensile strength(M pa) 56Days Avg split tensile
Waste plastic mix concrete with and without superplasticizer was tested at room temperature. Forty-eight cube samples were moulded for compressive strength tests at three, seven, and twenty-eight days. Eight beams were also cast to study the flexural
Abstract: Hugequantities of construction and demolished waste are generated every year in developing countries likes India .the disposal of this waste concrete requires a large area to get disposed, recycle allow to utilize that area for other meaningful purposes.
Dec 24, 2016 · 1. INFLUENCE OF MINERALADDITIONS ON THE PERFORMANCE OF GREEN RECYCLED AGGREGATE CONCRETE DAYAL KURIAN VARGHESE 1 24-Dec-16 2. OVERVIEW Introduction Green recycled aggregate concrete (GRAC) Recycled concrete aggregate (RCA) Case study-1 Case study-2 Conclusion References 24-Dec-16 2 Mobile Recycling Unit 3.
· Strength. If 50% of GGBS is used in a concrete mix, it can develop almost same 28 day strength as ordinary Portland cement. At higher GGBS percentages the increased cementitious content may lead achieve equivalent 28 day strength much faster. GGBS concrete gains strength more steadily than equivalent concrete made with Portland cement.
same properties and strength as that of the ordinary Portland cement. My study is based on the use of GGBS and silica fume in place of cement and to investigate the properties at different proportions. Index Terms- GGBS, Silica Flume, Concrete INTRODUCTION Concrete is the second most used material in the world after water.
w/c ratio. At lower w/c ratios, the compressive strength of recycled concrete is much lower than that of normal concrete and also higher w/c ratio give similar strength of conventional concrete. III. Year: AprilRECYCLED AGGREGATE CONCRETE, A SUSTAINABLE OPTION FROM DEMOLITION CONCRETE WASTE -A PERCENTAGE REPLACEMENT METHOD A. Author
higher strength for the concrete with a w/b ratio of 0.4. Concrete with a mix composition 70:30 at both w/b ratios showed the highest one-day strength development. Fig.5. Comparison of one-day compressive strengths Mixes with up to 50:50 WSA-GGBS ratio achieved similar 7-day strength. However, the mixes
Crushed waste concrete particles from demolish concrete buildings (parent concrete strength 20–30 MPa), with a size range of 2–20 mm, were used as the recycled coarse aggregates (RCA). Fig. 1 shows the particle gradation of the NCA and RCA. Table 2
International Journal of Scientific and Research Publications, Volume 7, Issue 3, March 2017 74 ISSN 2250-3153 www.ijsrp.org Beneficial Reuse of Waste Foundry Sand in Concrete 1) Mr.S.S.Jadhav Associate Professor PVPIT Budhgaon 2) Dr.S.N.Tande
Concrete is a construction material manufactured by the mixing of cement, aggregate, mixed water, and admixture materials. In the process of producing cement, which is the main composition material for concrete, not only do natural resources such as limestone and clay become depleted, but environmental impact substances are also emitted during clinker manufacturing through pyro process due to ...
What is Regen?Regen Ground Granulated Blast furnace Slag (GGBS) is a cement substitute, manufactured from a by-product of the iron-making industry. Using one tonne of Regen in concrete reduces the embodied CO2 by around 900kg, compared to using one tonne of Portland Cement, and also increases its durability. Regen is more sustainable than other cement substitutes such as Fly Ash.In …
A concrete mix of M30 is taken as the reference mix. Cement is replaced with GGBS with 0% and 10%.The effect of replacement of coarse aggregate by e-waste material and cement by GGBS on properties of concrete are studied for compressive strength and split tensile strength for hardened concrete at the age of 28 days and 90 days.
Compressive Strength Analysis of Concrete made with Demolished Aggregate within acceptable strain limit of Concrete. 1.1 Introduction Concrete used for residential purposes is around 2,500 psi (17 ...
grade concrete such as compressive strength, split tensile strength and flexural strength of concrete is discussed. The results are compared with that of the normal concrete Key words: Compressive strength, Fly ash, GGBS, Recycled fine aggregate, Split tensile strength.
Concrete's long life means that is more likely that a concrete building will come to the end of its life because no further use can be found for it, rather than a case of the concrete having failed due to age. In these cases, demolition is not always the automatic course.
The increased quest for sustainable and eco-friendly materials in the construction industry has led to research on partial replacement of the conventional constituents of concrete by two selected waste materials. The broad aim of this work was to investigate the ...
In major Egyptian cities there is a surge in construction and demolition waste (CDW) quantities causing an adverse effect on the environment. The use of such waste as recycled aggregate in concrete can be useful for both environmental and economical aspects in the construction industry.
Maximum strength values are obtained when 20% GGBS +15% Metakaolin is partially replaced with cement and Waste Medicine Wrappers is replaced with 10% Fine aggregates. Higher strength developed at optimum mix M2 due to pozzolonic reaction in concrete and
GGBS PPT - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. investigation on strength criteria and cost comparison of SCC using GGBS INVESTIGATION ON STRENGTH CRITERIA AND
Rate of strength gain of concrete: To determine the rate of gain of strength of concrete, there is a need to select period shorter than 28 day, as 28 day is considered to be the reference time. In concrete practice, it is accepted that after 28 days concrete usually gains most of its strength. Strength determined at an early stage say after 7th ...
Strength can be defined as ability to resist change. One of the most valuable properties of the concrete is its strength. Strength is most important parameter that gives the picture of overall quality of concrete. Strength of concrete usually directly related to cement ...
waste materials like- rubber tyre, e-waste, coconut shell, blast furnace slag, waste plastic, demolished concrete constituents, waste water etc. Construction waste recycle plants are now installed in various countries but they are partly solution to the waste problems.
The compressive strength of recycled concrete (FAR concrete) with Vikas Srivastava (y) Civil Engg Department SHIATS (formerly AAI-DU), Demolition Waste in Concrete 4235 10% fine aggregate ...
The demolished concrete could be recovered and used as cement raw meal to produce new cement clinker. In this study, the feasibility of making cement clinker with this kind of demolished concrete was studied. The concrete aggregates composed of steel slag, blast furnace slag, coal gangue and fly ash were prepared.
Most of waste materials produced by demolished structures disposed off by dumping them as land fill. Dumping of wastes on land is causing shortage of dumping place in urban areas. Therefore, it is necessary to start recycling and re-use of demolition concrete waste to save environment, cost and energy.
“Crushed concrete waste as coarse aggregate for high-performance concrete”, WIT Transactions on the built environment, Vol 85, @2006.  Chavan.R.R and Kulikarni.D.B, “Performance of crushed concrete waste on strength properties as partial replacement of fine