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The results. showed that the use of sea sand as a substitute for fine aggregate showed an average compressive strength in 7 days of 18.86 MPa, an. average compressive strength of 14 days of 25.52 ...
In this study, replacement of sea sand instead of river sand as 20%, 30%, 40% and 50% respectively as partial replacement for fine aggregate. Analysis of the parameters such as compressive strength, water absorption were investigated and compared with conventional concrete.It is found that sea sand addition does not improve the strength property but …
Experimental work done on the properties of Epoxy- resin bonded cement concrete containing sea sand reports percentages of various components in sea sand [12].The literature has also reported the particle size distribution of sea and river sand as shown in Fig. 2.The particle size distribution curves based on IS 2386- Part 1, demonstrates a consistent …
This study gives a comparison on the relevant material properties of Sea Sand (SS), Desert Sand (DS) and River Sand (RS).Different fine aggregate materials (SS, DS and RS) were used in 10%, 20%, 30%, 40% and proportion to make cement mortar blocks and tested for compressive strength at 3, 7, 28 and 56 days of curing.
The main objective of this project is to utilize the sea sand as fine aggregate in concrete for construction after the removal of chloride content from the sea sand by using sand washing process. 1) To study the practical utilization of sea sand as fine aggregate by …
Coal gangue is the main tailings of coal mine, accounting for about 10% ∼ 20% of coal production. At present, China is the largest coal production country reaching 5 billion tons, rising at an annual rate of 150 million ∼ 200 million tons [1], [2].In recent years, the average annual consumption of concrete in China has exceeded 436 million tons, and the average …
Karumanchi et al. investigated fine aggregates containing foundry sand at various proportions (0%, 25%, 50%, 75%, ) and cement containing FA at 10%, 30%, and 50%, it was found that 30% FA and ...
Experimental Study on Suitability of Sea Sand as Fine Aggregate for Concrete Author: Prabin Kumar. K Subject: IJERT - International Journal of Engineering Research and Technology Keywords: Experimental,Study,on,Suitability,of,Sea,Sand,as,Fine,Aggregate,for,Concrete Created Date: 7/13/2018 3:31:00 PM
In case of 80% replacement of sea sand as fine aggregate the Characteristic compressive strength is reduced by 49.37%. It is observed that for replacement of sea sand as fine aggregate in concrete compressive strength is reduced by 53.82%. Usage of Sea sand in concrete found there is a
On the other hand, Manufactured Sand (M−Sand), offshore sand, quarry dust, and sea sand are identified as the common rock-derived and sea-based mineral alternatives for river sand replacement. [4], [8], [11], [12] To reduce the demand for fine aggregate, dredged marine sands can be used as an alternative for fine aggregate in the ...
But they differ in surface texture, which may affect the interlocking properties and hence the strength of concrete according to studies conducted on different types of fine aggregate, such as sea ...
AbstractContradictory results have been published on the effect of sea sand and seawater in concrete as opposed to conventional river sand and freshwater. ... A. Arokiaprakash, and S. Karthiga. 2017. "Study on use of coral sand as fine aggregates in concrete." Int. J. Civ. Eng. Technol. 8 ... School of Civil, Mining and Environmental ...
Recycled concrete with manufactured sand (RCM) is a type of recycled concrete that uses manufactured sand as fine aggregate, and there have been limited reports on the investigation of its high temperature performance in the construction industry.
Researchers have also used alkali-activated cements based on slag and fly ash for producing SW-SS concretes. River sand, sea sand, coral sand, and marine sand are used as fine aggregates in producing SW-SS concrete, while crushed granite, coral aggregate, and gravel are used as coarse aggregates.
The results showed that the use of sea sand as a substitute for fine aggregate showed an average compressive strength in 7 days of 18.86 MPa, an average compressive strength of 14 days of 25.52 MPa, an average compressive …
River-sand mining has risen dramatically in the last few decades to fulfil the need for concrete in the building sector. The sand in a river's bed preserves its environmental equilibrium (Farahani and Bayazidi, 2017).Excessive river-sand mining for use as fine aggregate in concrete is responsible for riverbed degradation, which causes a wide range of …
However, this structure depends on the aggregates types. (Huiguang et al., 2011) demonstrated that the type of fine aggregate tends to be the second most influential factor in determining the ...
Properties of fine aggregate (sand) affect concrete properties such as durability, strength, thermal properties, unit weight, and surface friction. River sand deposits consist of gravel and sand that can be readily used in concrete with minimal or no processing. ... Mayekar D (2006) Impact of sand mining in local ecology. In: Sangeetha S (ed ...
The current specifications for RAC in structural engineering primarily focus on the application of RAC prepared with RCA, with limited attention given to the use of recycled fine aggregate [9].The utilization of recycled fine aggregate is restricted due to its lower quality compared to river sand, resulting in decreased workability and mechanical properties of …
This is needed to replace the volumes of sand that are washed away every year by the autumn and winter storms on the North Sea. In 2018 in Europe, a total of around 54.13 million cubic metres of sand and gravel were removed from the sea. Marine sand and gravel are generally only used when there are no appropriate deposits on land.
The hardening process occurs because of the continuous chemical reaction between water and cement [7] [8]. 2.2. Sea Sand Instead of Fine Aggregate Sea sand is sand taken from the shores of the beach, the shape of the grains are smooth and round due to friction with each other [9]. This sand is bad because it contains a lot of salt.
As is well known, the gradation of aggregates has different effects on the fluidity and strength of concrete. In order to ensure the quality of SWSSC, JGJ206-2010 [17] specifies the limit value of aggregate particle size distribution. Gutt [34] believed that the geological origin of sea sand is similar to that of sand and stone used in ordinary concrete (OPC).
Two concrete mixtures were prepared to study the influence of crushed sand compared with natural sand. These mixtures were designed with a w/c of 0.30, a very large cement content (530 kg/m 3) and similar slump.The effects of shape and texture of fine aggregate were evaluated by comparing the fresh and hardened properties of granite sand …
the sea sand pumped from a distance of about ten kilometers is very suitable for building construction industry. This study is to experiment the suitability to use beach/sea sand as a …
The results showed that the use of sea sand as a substitute for fine aggregate showed an average compressive strength in 7 days of 18.86 MPa, an average compressive strength of 14 days of 25.52 ...
Fine aggregate is basically any normal sand particle that comes from the land through the mining process. Fine aggregates comprise regular sand or any squashed stone particles that are 1/4″ or smaller. This item is frequently alluded to as 1/4″ short as it alludes to the size, or evaluation, of this specific aggregate.
The results demonstrate that the seawater-sea-sand-based concrete column behaves similarly to conventional natural aggregate concrete (NAC) when the shell content in sea-sand equals 2.31%.
The study on partial replacement of fine aggregate in concrete involves determination of physical properties of constituent materials, compressive strength test, flexural strength test, water absorption test, alkalinity test and durability test on M30 mix concrete with fine aggregate replaced in proportions of 0%, 10%, 20%, 30%.
The particle size distribution was measured. The short-term mechanical properties of sea sand–seawater concrete were compared with conventional concrete. The concrete …
The depletion of natural sand deposits and illegal sand mining is a common issue on these days. Extraction of river sand as fine aggregate affect negatively on river ecosystems, navigation and flood control. ... Coimbatore SEA SAND AS FINE AGGREGATE FOR CONCRETE PRODUCTION Samraj P1, Nagarajan V2 1 2 PG Student, Department of Civil Engineering ...
