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D&Q Mining is a high-tech company integrating R&D, production and sales. It provides mature products and solutions such as crushers, sand making, milling equipment, mobile crushing stations, etc., for aggregate, mining and waste recycling.

advantages of sand as fine aggregate in kenya

Kenya’s major sand scramble Aggregates Business

02/11/2015· Construction of new infrastructure in Kenya has created a huge demand for sand and gravel, forcing some consumers and suppliers to look for these materials in areas considered to have environmentally delicate ecosystems. Shem Oirere reports. The Indian Ocean seabed and riverbanks have become the latest sources of sand and gravel

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advantage of fine aggregate GharExpert

Fine Aggregate may have more impact on the strength of the building than cement. This article explains the guidelines to check the quality of fine aggregate and purchasing guidelines What is aggregate. There are mainly two types of aggregate:Fine aggregate and coarse aggregate. Let us know more about aggeregate in following article Aggregates of concrete and their density. In cement concrete

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BGS to explore sustainable sand supply in Kenya Agg-Net

16/10/2020· Joint international project aims to support sustainable development of sand and aggregate resources. THE British Geological Survey (BGS) is participating in a joint UK-Kenyan international project that aims to blend data and information with local stakeholder input to explore the sustainable supply of sand and aggregates in Kenya. The project, called Earth Observation for Sustainable Aggregate

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PARTIAL REPLACEMENT OF NATURAL RIVER SAND WITH

The cement commonly used in Kenya is categorized as 32.5 or 42.5 also referred to as power plus The fine aggregate is usually sand sourced from river banks or pits. Coarse aggregates may be classified as normal, light or heavy weight aggregates. Aggregates should be clean and free from organic impurities. Sand should be clean and free from clay, organic content, silt and other inferior

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Use of sea sand as fine aggregate in concrete making

Concrete is a mixture of cement, coarse aggregates, fine aggregates or sand and water. The approximate ratios of these components are as below: Based on the ratios and the anticipated cement consumption in the country, the expected requirement of sand will be about 500-550Mt in the next few years or so. Traditionally, river sand has been the main source of supply but the restrictions now

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PARTIAL REPLACEMENT OF NATURAL RIVER SAND WITH CRUSHED

The cement commonly used in Kenya is categorized as 32.5 or 42.5 also referred to as power plus The fine aggregate is usually sand sourced from river banks or pits. Coarse aggregates may be classified as normal, light or heavy weight aggregates. Aggregates should be clean and free from organic impurities. Sand should be clean and free from clay, organic content, silt and other inferior

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The Pros and Cons of Manufactured Sand The Screed

Growing demand for fine-aggregates in construction: The Advantages of Manufactured Sand. More cost effective than natural sand: Manufactured sand can be produced in areas closer to construction sites, bringing down the cost of transportation and providing an assurance of consistent supply. Compliant with the new European Standards: Manufactured sand can be used as aggregates in

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Specification of Fine Aggregate/Coarse Sand

Fine Aggregate Fine aggregate/ coarse sand consists of natural sand, crushed stone sand or crushed gravel stone dust. It should be hard, durable chemically inert, clean and free from organic matter, not containing any appreciable amount of clay balls or pellets and other harmful impurities i. e. alkaline, salt, mica, decayed vegetation, lumps etc. It should be passed through I. S. Sieve 4.75

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What Is Bulkage of Sand (Fine Aggregate )

2. Sample sand Also Read :LAB TEST ON AGGREGATES AT SITE. Producer: Put a sufficient quantity of the sand loosely into a container. until it is about two-thirds full. Level off the top of the sand and pushing a steel rule vertically down through the sand at the middle to the bottom, measure the height. Suppose this is h cm.

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Effect of Sawdust as Fine Aggregate in Concrete Mixture

Keywords: Building construction, fine aggregate, sand, sawdust concrete mixture 1. Introduction The development in the construction industry all over the world is progressing [1]. Many structures are being built, both residential and non-residential. Just like many countries, the demand for new structures in the Philippines is highly increasing [2]. Attempts have also been made by various

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Difference Between Fine and Coarse Aggregate Civil

River sand or machine sand, crushed stone sand, crushed gravel sand are the major sources of fine aggregate. Dolomite aggregates, crushed gravel or stone, natural disintegration of rock are the major sources of coarse aggregate. 5: Surface Area: The surface area of fine aggregates is higher. The surface area of coarse aggregate is less than fine aggregates. 6: Function in Concrete: The voids

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Aggregates Types of Aggregates Coarse Aggregate,

Aggregate is a granular material, such as sand, gravel, crushed stone, crushed hydraulic-cement concrete, or iron blast-furnace slag, used with a hydraulic cementing medium to produce either concrete or mortar. Types of aggregates include Coarse aggregate and fine aggregate. The aggregate of each type is further sub-divided into many types and classification based on its size. The technique of

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HOW FINE AGGREGATES AFEECTS CONCRETE MIX DESIGN

Fine aggregate is on of the major constituents of concrete which can influence concrete mix design substantially. Various factors such as fine aggregate fineness modulus, moisture content, specific gravity, and silt content affect the mix proportions of concrete. Fineness modulus specifies how much fine aggregate is required in a given mix design. Fine aggregate moisture []

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Types of Aggregates-Natural and Artificial Aggregates

The sand is used as the fine aggregates for the purpose of concrete making. 2.Gravel. The gravel is another type of aggregates and is mainly used for as coarse aggregates in concrete. Bank gravel, bench gravel and crushed stone are the examples of gravel. The size of gravel ranges from 4mm to 64 mm. The gravels are also classified into different names based on their size. 3.Granite. Granite is

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Function and Importance of Aggregate in Concrete

21/11/2016· • Coarse aggregate is used to describe particles larger than 4.75 mm, and the term fine aggregate is used for particles smaller than 4.75mm; typically, fine aggregates contain particles in the size range 75 µm to 4.75 mm, and coarse aggregates from 4.75 to about 50 mm, except for mass concrete which may contain particles up to 150 mm. • Most natural mineral aggregates, such as sand

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