suitability of river sand mining sand and sea sand as a fine aggregate

Size of Fine Aggregate Is. The size of fine aggregates is defined as 4.75mm or smaller. That is, aggregates which can be passed through a number 4 sieve, with a mesh size of 4.75mm. Fine aggregates include things such as sand, silt and clay. Crushed stone and crushed gravel might also fall under this category.

Hence an alternate fine aggregate has to be utilised to meet out the needs of construction industry. Also using of river sand and mining of river bed lead to hazardous environmental effects which has to be stopped. In this paper, an attempt has been made to use washed sea sand as partial replacement of fine aggregate.

Jan 01, 2021· Sea sand overcomes the upcoming demand in the requirement of the river sand and M-sand as fine aggregate in construction industry, .Sea sand samples as fine aggregate are collected from the coast of Arabian Sea of India near to the place Snehatheeram beach located in Kerala is the floor of sea shore.

Thus, this paper reports the average compressive strength of concrete made with river sand (fine aggregate) and the one produced with the dune sand (fine aggregate). A concrete of nominal mix 1:2:4 using w/c ratio of 0.62 were adopted to produce concrete cubes 150mm x 150mm x 150mm. 7, 14, 21, 28 days hydration period …

10.2 Sand: The Fine Aggregate Natural sand is a weathered and worn out particle composite derived originally from primary (igneous) and secondary (metamorphic and …

The consumption of tremendous amounts of raw materials, particularly river sand and freshwater, in concrete production has raised serious environmental concerns. …

To study the influence of sea sand on the Compressive strength in development of concrete and compare the result with that of concrete produced using river sand. To provide information on sea sand, cement, aggregates and mix design processes. To examine the suitability of sea sand as fine aggregate in concrete. 4.

General guidelines for Mining gravel and sand from river in Malaysia. Following steps are taken as per guidelines: 1. Initially location of sand and gravel deposition or aggradation is identified. Mine operator is permitted to extract material where problem of aggradation is least.

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 …

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 substitute for river sand as fine aggregate for concrete. Keywords: Concrete, Sea sand and Fine aggregate. 1. INTRODUCTION

Calculation of Fineness Modulus of Sand. Let us say the dry weight of sample = 1000gm After sieve analysis the values appeared are tabulated below. Therefore, fineness modulus of aggregate = (cumulative % retained) / 100 = (275/100) = 2.75 Fineness modulus of fine aggregate is 2.75. It means the average value of aggregate is in between the 2 nd ...

The world wide consumption of sand as fine aggregate in concrete production is very … hence its suitability for use in concrete for rigid pavement. » More detailed. suitability of mining sand as fine aggregate-[mining plant] Fine Aggregates concrete and crushed sand … Mining the sea sand … coat plastering and impervious layer suitability ...

We can expect 5 - 20% slit content in medium quality river sand. Over Sized Materials.Fine aggregate sizes range from 4.75 millimeters to 200 microns. The aggregate used percentage is generally 40% of fine aggregate and 60 % of coarse aggregates are used in the concrete mix. Sand is mainly used as a fine aggregate

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 the river sand is widely used in construction industry, the demand for fine aggregate is increasing rapidly. River sand has been the most widely used as fine aggregate around …

The lack of river sand has led to the use of sea-sand and crushed stone fines in many countries, with the use of sea-sand in the UK being an example [4]. More than 90% of the world's dredged sea-sand has been used as a raw material in the construction industry, with over 45% of the dredged sea-sand being used as fine …

To examine the suitability of sea sand as fine aggregate in concrete. 4.The maximum value of 2.567 N/mm2 for concrete made with quarry dust as fine aggregate is higher than the minimum value of 2.2155N/mm2 for concrete made with river sand as fine aggregate.

Major objective of the study was to examine the suitability of M-sand as fine aggregate in mortars and concrete. Apart from characterising the properties of M-sand, tests were performed on the mortars and concrete using M-sand as well as natural river sand. One M-sand sample (supplied by the Department of Mines and Geology) and one natural ...

Fine aggregate, sea sand, minerals, concrete, strength 1. INTRODUCTION Fine aggregate is one of the important constituents of concrete and mortar in construction industry (Mehta and Monteiro, 1993). River sand is becoming a scarce material. Sand mining from our rivers has become objectionably excessive. It has

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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...

In Sri Lanka, the total demand for sand is about 12,000,000 m3 per year with a demand growth projected to increase by 10 % every year. However, Sri Lanka's construction industry seems to face a shortage of sand if offshore sand mining is not promoted as a viable alternative and over-exploitation of river sand may lead to more …

Sampling of fine aggregates (sea sand, quarry dust and river sand) and coarse aggregates (approximately 20 mm size) were carried out during 2007 August. Sand samples of 40-50 kg were collected ...

The lack of river sand has led to the use of sea-sand and crushed stone fines in many countries, with the use of sea-sand in the UK being an example [4].More than 90% of the world's dredged sea-sand has been used as a raw material in the construction industry, with over 45% of the dredged sea-sand being used as fine aggregate for …

The shell content of offshore sand for shells finer than 10 mm and coarser than 5 mm is 6.5 per cent. This is far below the 20 per cent limit specified in BS 882:1992. For grade 25 concrete ...

Suitability Of Beach Sand As Fine Aggregate For Concrete … Search suitability of beach sand as fine aggregate for concrete to find your need. Gulin Mining and Construction Machinery is a global manufacturer and supplier, We … » Free online chat! Use of Crushed Granite Fine as Replacement to River Sand in … and 1.75N/mm2, …

To solve the lack of river sand resources, domestic and foreign scholars are searching for building sand alternatives to river sand, such as artificial sand and sea sand [3] [4] [5]. Artificial ...

Abstract. In this investigation, four types of sands as alternatives to river sand, namely, crushed sand (CS), marine sand, fine recycled concrete aggregate …