scholarly journals Effects of Higher Percentage of Stone Dust Used as a Fine Aggregate in Concrete and Variation of Strength due to the Variation of Cement Content and W/C Ratio

2018 ◽  
Vol 7 (2) ◽  
pp. 1-6
Author(s):  
Bikram Paul ◽  
Kushal Ghosh
Keyword(s):  
Construction Industry ◽  
Cement Content ◽  
Strength Properties ◽  
Fine Aggregate ◽  
Split Tensile Strength ◽  
Economic Problems ◽  
River Bed ◽  
Stone Dust ◽  
Rock Crusher ◽  
Basic Strength

Abstract – Sustainability and Unavailability play an important role while we choose material for manufacturing of concrete. Nowadays, both Central and State Govt. have taken legal action on the extraction of sand from the river bed due to the bad impacts on the river like changes the shape, slope of the bed and also in the channel morphology. Due to the implementation of this type of law, legal sand quarries did not able to make balance with the rapid growth of the construction industry. That’s why, to make profit and supply extra needs of sand to the concrete industry “Sand Mafias” involved into the illegal trades of the sand. To counteract these sorts of socio-economic problems, we have to go for an alternative fine aggregate. Though it may not be possible to replace fully, we have to concentrate on the sand being replaced by the high percentage of alternative fine aggregate. Stone dust is a by-product from rock crusher and it can be recycled by using it in the concrete and maintained the sustainability. As stone dust has acceptable properties of fine aggregate sand with regard to shape and texture, it can be thought of as an alternate fine aggregate but research is needed on the extent of sand replacement by stone dust. The present study is done keeping in mind the use of stone dust as high as possible. That’s why two Design Mix have been designed M20 and M25. For M20 grade of concrete sand has been replaced by stone dust 25%, 30% and 35% by volume and the basic strength properties of concrete have been investigated for the above replacements like compressive strength, flexural strength, split tensile strength etc. In case of M25 grade of concrete 30%, 40% and 50% replacement of sand have been done and variation cement content and water-cement ratio has been done by comparing the target mean strength of M25 grade of concrete.

scholarly journals Strength Properties of Concrete with M-Sand as Fine Aggregate Incorporating with Acrylic Fiber

2020 ◽  
Vol 9 (4) ◽  
pp. 204-208
Keyword(s):  
Tensile Strength ◽  
Plain Concrete ◽  
Strength Properties ◽  
Fine Aggregate ◽  
River Sand ◽  
Split Tensile Strength ◽  
Acrylic Fiber ◽  
River Bed ◽  
Strength And Durability ◽  
Aggregate Material

The river sand is the natural sort of fine aggregate material which is employed within the concrete and mortar. It’s usually obtained from the river bed and mining has disastrous environment consequences. Rather than the river sand we are using M-sand as fine aggregate within the concrete. The event of acrylic concrete marks a crucial milestone in improving the merchandise quality and efficiency of the concrete. Usage of acrylic within the concrete will increase the strength and durability of the concrete. It enhances the performance of the concrete and increase energy absorption compared with plain concrete. Within the present work we are getting to analysis the strength properties of fiber reinforced M-sand concrete like compressive strength, flexural strength, split tensile strength, and bond strength.

Strength and Corrosion Resistive Properties of Concrete Containing Quarry Dust as Fine Aggregate with GGBFS

2011 ◽  
Vol 243-249 ◽  
pp. 5775-5778 ◽  
Author(s):  
M. Devi ◽  
K. Kannan
Keyword(s):  
Strength Properties ◽  
Chloride Ions ◽  
Partial Replacement ◽  
Optimum Level ◽  
Fine Aggregate ◽  
Split Tensile Strength ◽  
Natural Sand ◽  
Weight Loss Method ◽  
Loss Method ◽  
Quarry Dust

Demand for natural sand in concrete is increasing day by day since the available sand cannot meet the rising demand of construction sector. This paper reports the experimental study undertaken to investigate the influence of partial replacement of cement with Ground Granulated Blast Furnace Slag(GGBFS) in concrete containing quarry dust as fine aggregate. The cement was replaced by 10%, 20%, 30%, 40% and 50% of GGBFS and tests were conducted to determine the optimum level of replacement of GGBFS in quarry dust concrete. The specimens were subjected to compressive strength, split tensile strength, flexural strength, and bond strength tests at 7days, 28days, 56days, 90days and 150 days. The resistance to corrosion is evaluated based on the performance of the concrete for the penetration of chloride ions by means of impressed voltage technique in saline medium and Gravimetric weight loss method. Results herein reveal that an increase in slag proportion increases the strength properties and decreases the rate and amount of corrosion of reinforcement and among the various percentages of replacement 40% is found to be optimum with better strength and corrosion resistance properties.

scholarly journals Evaluating Optimum Strength of Geopolymer Concrete using Quarry Rock Dust with inclusion of natural and hybrid fibers under ambient curing

2020 ◽  
Vol 9 (6) ◽  
pp. 1-5
Keyword(s):  
Construction Industry ◽  
Glass Fibers ◽  
Strength Properties ◽  
Waste Materials ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Geopolymer Concrete ◽  
Hybrid Fibers ◽  
River Sand ◽  
Rock Dust

Conventionally used cement –a primary binder also a necessitate element in producing concrete rates first in the construction industry. Production of conventional cement requires a greater skill and is energy intensive. The usage of waste materials in the production of concrete and reduction in cement content was only the possible alternative in the past decade. Associated risks with the production of Ordinary Portland Cement are well known. A greener aided with a natural friendly claim can be made only with the usage of the waste materials and reduction in evolving respiration gas to the atmosphere. Almost all works are carried out using source material fly ash, with fine aggregate and coarse aggregate. Concrete plays a vital role in the construction industry and on the other hand, river sand; one of the essential material has become very expensive which is a scarce material. Depletion of sand is a hectic issue due to increased usage of sand in construction. No other replacement materials such as quarry rock dust is not concentrated in casting geopolymer specimens. Even though in some research papers the replacement materials are added only in partial replacement without aiming on 100% replacement. Many researches mainly focus towards test results of GPC specimens using steel fibers, glass fibers. But the study related to natural fibers and hybrid fibers are found scarce. The main part of this work aimed at characterizing the engineering strength properties of geopolymer concrete by 100% replacement of fine aggregate with quarry rock dust. Hence, combination of flyash and quarry rock dust in GPC have been considered for evaluating the mechanical properties of geopolymer concrete. Also, investigation focuses on incorporation of three different fibers namely polypropylene fibers(PF), coir fibers(CF) and hybrid fibers(HF) in different percentage of proportions such as 0.5%,1%,and 1.5% to determine the maximum strength properties of GPC.

scholarly journals Utilization of Waste Rubber Tyres as an Ingredient in Concrete Mixes.

2020 ◽  
Vol 9 (5) ◽  
pp. 149-154
Keyword(s):  
Construction Industry ◽  
Research Work ◽  
Impact Resistance ◽  
Crumb Rubber ◽  
Waste Material ◽  
Fine Aggregate ◽  
Split Tensile Strength ◽  
Volume Variation ◽  
Waste Tyres ◽  
Materials Used

Improvements in materials used for construction have an important impact on the Construction industry. Therefore many efforts have been made in the construction industry to put to use waste material products, e.g., worn-out tyres, into useful and Economical items. If this is achieved successfully it will contribute to the reduced quantity of waste material dumping problems by effective use of these waste materials in the building sector. The present research will concentrate on how to effectively put to use the rubber waste tyres in construction industry so as to reduce their impact on our precious environment and also using them effectively in the construction process. It will involve comprehensive laboratory tests on fresh and hardened rubberized concrete in order to study its strength behavior i.e. compressive and flexure strength, and its impact resistance with different volume of rubber in crumb state (fine aggregate). Volume variation of crumb rubber. The proposed research work will study the effect of volume variation of crumb rubber on the compressive strength, flexural strength, split tensile strength & workability in terms of Slump in mm of the concrete.

scholarly journals Effect on Strength Properties of Concrete Containing Seashell Powder as a Partial Substitution of Fine Aggregate and Silica Fume used as Admixture

2018 ◽  
Vol 7 (3.12) ◽  
pp. 689
Author(s):  
Pragadeesan S ◽  
Harishankar S
Keyword(s):  
Silica Fume ◽  
Strength Properties ◽  
Partial Substitution ◽  
Fine Aggregate ◽  
Split Tensile Strength ◽  
Conventional Concrete ◽  
Suitable Alternative ◽  
Pozzolanic Material ◽  
Strength Tests ◽  
The Cost

Sand is the most normally utilized fine aggregate in construction industry for the generation of concrete. The present scenario is in such a way that the cost of sand reached new heights and the demand for sand is also exhaustive. The replacement of the sand has a lot of constraints. Seashells are composed of calcium carbonate or chitin can be suitable alternative. It is used as a replacement of fine aggregate by 2%, 4%, 6%, 8%, and 10% for M20 grade concrete. Further 15% and 20% replacements are made. Silica fume is a ultrafine powder gathered as a result of silicon and ferrosilicon compound generation and the principle field of use is as pozzolanic material. It is used as an admixture by 5% to 10% of weight of cement to improve the strength properties. Concrete cubes and cylinders with mentioned proportion and conventional concrete are casted. Mechanical properties are evaluated by conducting compressive strength and split tensile strength tests.  

scholarly journals Impact of Design Parameters on the Ratio of Compressive to Split Tensile Strength of Self-Compacting Concrete with Recycled Aggregate

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3480
Author(s):  
Rebeca Martínez-García ◽  
P. Jagadesh ◽  
Gabriel Búrdalo-Salcedo ◽  
Covadonga Palencia ◽  
María Fernández-Raga ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Strength Properties ◽  
Recycled Aggregate ◽  
Recycled Aggregates ◽  
Design Parameters ◽  
Fine Aggregate ◽  
Strength Ratio ◽  
Self Compacting Concrete ◽  
Split Tensile Strength ◽  
The Impact

Most concrete studies are concentrated on mechanical properties especially strength properties either directly or indirectly (fresh and durability properties). Hence, the ratio of split tensile strength to compressive strength plays a vital role in defining the concrete properties. In this review, the impact of design parameters on the strength ratio of various grades of Self-Compacting Concrete (SCC) with recycled aggregate is assessed. The design parameters considered for the study are Water to Cement (W/C) ratio, Water to Binder (W/B) ratio, Total Aggregates to Cement (TA/C) ratio, Fine Aggregate to Coarse Aggregate (FA/CA) ratio, Water to Solid (W/S) ratio in percentage, superplasticizer (SP) content (kg/cu.m), replacement percentage of recycled coarse aggregates (RCA), replacement percentage of recycled fine aggregates (RFA), fresh density and loading area of the specimen. It is observed that the strength ratio of SCC with recycled aggregates is affected by design parameters.

scholarly journals Utilisation of Seasand as Partial Replacement of Fine Aggregrate to Strengthen the Concrete

2020 ◽  
Vol 9 (5) ◽  
pp. 891-894
Keyword(s):  
Construction Industry ◽  
Coarse Aggregate ◽  
Construction Material ◽  
Strength Properties ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
River Sand ◽  
Sea Sand ◽  
Quarry Dust

Concrete is an important construction material widely used in the construction industry nowadays. It is blended material consisting of cement, fine aggregate, coarse aggregate and water. Generally the use of river sand as fine aggregate in our country is very widespread in industry. This paper mainly focuses on the study of strength properties of concrete in which river sand is replaced with sea sand as fine aggregate. In addition to it, Quarry Dust when added gains strength. Different mix proportions was replaced partially in 5%, 10%, 15% by Sea sand and Quarry dust. The strength of concrete for various mix proportions are carried out and tested for 14, 28, 56 days of curing. From the results obtained, with the replacement of river sand by sea sand along with well graded quarry dust upto to 15% increases the strength of concrete.

scholarly journals Effects of Partial Replacement of Fine Aggregate with Quarry Dust on Concrete Properties

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
S.O Ajamu ◽  
I.A Raheem ◽  
S.B Attah ◽  
J.O Onicha
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Replacement Level ◽  
River Sand ◽  
Split Tensile Strength ◽  
Stone Dust ◽  
Concrete Production ◽  
Quarry Dust

Natural river sand is one of the important constituent materials in concrete production while stone dust is a material obtained from crusher plants which is also sometimes being used either partially or fully in replacement of natural river sand in concrete production. Use of stone dust in concrete not only improves the quality of concrete but also conserve the natural river sand. However, due its scarcity and environmental degradation caused resulting from excessive mining of Natural river sand, there is need to investigate an alternative material of the same quality which can replace river sand in concrete production. In the present study, experiments were carried out to study the gradation of aggregates, workability, compressive strength and split tensile strength of concrete made using quarry dust as replacement of fine aggregate at 0, 25, 50, 75, and 100%. Grade M15 of concrete was produced with ordinary Portland cement (OPC) for referral concrete while M25 of concrete was prepared for compressive strength and split tensile strength concrete. Workability and Compressive strength were determined at different replacement level of fine aggregate and optimum replacement level was determined based on compressive strength. Results showed that by replacing 50% of fine aggregate with quarry dust, concrete of maximum compressive strength can be produced as compared to all other replacement levels. The effect of quarry dust on compressive strength and split tensile strength was investigated and from the overall result obtained, it was observed that the compressive strength and split tensile strength increased significantly for all the curing ages from 0% to 50% replacement level of quarry dust. Maximum value obtained for 28day compressive and tensile strength were 25N/mm2 and 2.3N/mm2 respectively and this occurred at 50% replacement.

scholarly journals A Performance Study on Partial Replacement of Polymer Industries Waste (PIW) as Fine Aggregate in Concrete

2018 ◽  
Vol 64 (3) ◽  
pp. 45-56 ◽  
Author(s):  
K. Srinivasan ◽  
J. Premalatha ◽  
S. Srigeethaa
Keyword(s):  
Mechanical Strength ◽  
Strength Properties ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Performance Study ◽  
Normal Concrete ◽  
Split Tensile Strength ◽  
Waste Plastic ◽  
The Sustainable Development ◽  
Plastic Wastes

AbstractRecycling of plastic wastes helps in reducing waste disposal problems and helps for the sustainable development of the country. Concrete with various % (0 to 55%) of waste plastic aggregates were tested for their mechanical strength properties. In the present work, plastic aggregates obtained as end product of a polymer recycle industry in the form of grains called as plastic aggregates are used as fine aggregate replacements in concrete. The addition of plastic aggregate as fine aggregate replacements results in increase in compressive strength, split tensile strength and flexural strength and thus helps in production of sustainable concrete. It is observed that, the optimum % of replacement of sand with waste plastic waste is 40% and it is also found that upto55% of sand replacements with plastic wastes, mechanical strength values are comparable with that of the normal concrete.

scholarly journals Strength Properties of Concrete using Stone Dust as a Replacement Material for Fine Aggregate

2019 ◽  
Vol 8 (12S) ◽  
pp. 946-951
Keyword(s):  
Mechanical Properties ◽  
Saline Water ◽  
Physical And Mechanical Properties ◽  
Regular Structure ◽  
Strength Properties ◽  
Fine Aggregate ◽  
Cement Concrete ◽  
Stone Dust ◽  
To Come ◽  
Stream Bed

Fine total is one of the significant material in the planning of cement. Concrete is most generally utilized in development materials Major segments of cement are totals which are typically accessible in regular structure. The interest for waterway sand in the development business has therefore expanded because of the broad utilization of cement. The huge scale exhaustion of common sand makes ecological issues, for example, soil disintegration, disappointment of waterway banks, bringing down of stream bed, saline water interruption into the land. To evade these sort of issues and to save common assets fine total utilized in concrete is supplanted by stone residue. Utilization of stone residue in concrete improve the nature of concrete as well as go about as reasonable elective material for common stream sand for who and what is to come. In the present examination a trial program was done to consider the quality and properties of regular solid utilizing stone residue concrete in M45 grade. In view of the test examinations led, it is presumed that the stone residue is best option for the fine total since fine total and stone residue has comparable physical and mechanical properties. It is discovered that 40% supplanting of fine total with stone residue invigorates conspicuous than customary cement.

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