المنتجات الساخنة
Alternative fine aggregates in production of sustainable concrete
网页2020年9月20日 The alternative fine aggregates satisfies the requirements as alternatives to river sand. Crushed rock sand, industrial by-products and recycled fine aggregates are used as replacement of river sand. LCA shows reduction in terms of climate change and
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Pertinence of alternative fine aggregates for concrete and mortar
网页2023年2月14日 Construction industries around the world are facing many difficulties in obtaining good-quality fine aggregates for concrete and mortar due to a shortage of river
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A review on alternatives to sand replacement and its effect
网页2023年3月24日 This study examines various alternatives to fine aggregate (conventional Sand) replacements (such as Waste Foundry Sand, Graphite Tailings, Low-Density
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A Framework to Select Fine Aggregate Alternative Using
网页2020年4月18日 The seven fine aggregate alternatives considered in the study are coal bottom fly ash, marble powder, ceramic powder, quarry rock dust, foundry sand, natural
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Use of Foundry Sand as Partial Replacement of Natural Fine Aggregate
网页2018年12月31日 Use of certain percentage of foundry sand as alternative for natural fine aggregate to produce concrete will lead to protect the natural resources, save the
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Alternative Fine Aggregates to Produce Sustainable Self
网页2022年4月29日 Crushed Rock Sand (CRS), Recycled Fine Aggregates (RFA), and Industrial by-products are examples of alternative fine aggregates. These alternative
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Can someone suggest an alternative of sand as a fine aggregate
网页Manufactured sand blended with natural sand in the ratio of 70:30 can be used as fine aggregate in concrete, which shows the better performance than conventional concrete.
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(PDF) Analysis Of Use Sea Sand as A Fine
网页2021年7月2日 The utilization of sea sand as an alternative to fine aggregate in the manufacture of concrete is motivated by the availability of sea sand in nature in very large quantities.
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Study on sea sand as a partial replacement for fine
网页2020年5月11日 Hence, the abundant sea sand can be used as an alternative of river sand partially.The sea sand samples before (samples A and C) and after mineral extraction
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Sawdust as an Alternative Material for Sand in Concrete
网页This predicament leads the researcher to look for possible substitutes for natural aggregates particularly sand by investigating the potential use of sawdust as alternative for sand as
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The Production of Sustainable Concrete with the
网页2020年9月24日 The replacement of sand with GGBFS as fine aggregate improved the workability of concrete mixture: the slump test result moved from 150 mm of a conventional paste to 180 mm. This result may be
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Use of Foundry Sand as Partial Replacement of Natural Fine Aggregate
网页2018年12月31日 3.2 Compressive Strength. Figures 3 and 4 show the compressive strength after 7 days and 28 days respectively for the different concrete mixes having FS as fine aggregates partially. It is clearly observed that compressive strength of different concrete mixes with partial replacement of NFA by FS has increased up to 20%
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Can someone suggest an alternative of sand as a fine aggregate
网页Manufactured sand blended with natural sand in the ratio of 70:30 can be used as fine aggregate in concrete, which shows the better performance than conventional concrete. If the sand is replaced
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Recent Trends in Replacement of Natural Sand
网页2018年2月17日 river sand or pit sand is used as fine aggregate in mortar and concrete. Together fine and coarse aggregate make about 75- 80 % of total volume of concrete and hence it is very important to fine
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Recent Trends in Replacement of Natural Sand With
网页2013年12月17日 alternatives, such as offshore sand, quarry dust and filtered sand have also been made (W.P.S. Dias et al 2008)[2]. Physical as well as chemical properties of fine aggregate affect the durability, workability and also strength of concrete, so fine aggregate is a most important constituent of concrete and cement mortar. Generally
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Study on Suitability of Sawdust as an Alternate for Fine Aggregate
网页2022年11月9日 The mix ratio adopted to prepare concrete is 1:1.5:3 with a water-to-cement ratio of 0.55 natural sand used as a fine aggregate in concrete and the same was partially replaced with sawdust at various percent of 2.5, 5.0, 7.5, 10, and 12.5%. Two sets of concrete were produced; one set was incorporated with fly ash (10% of the cement
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Study on sea sand as a partial replacement for fine
网页2020年5月11日 1993). River sand is becoming a scarce material. Sand mining from our rivers has become objectionably excessive. It has now reached a stage where it is killing our rivers day by day. As natural sand deposits have become depleted near some areas of metropolitan growth, the use of alternatives to sand as a replacement for fine aggregate
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Studies on use of Copper Slag as Replacement Material for River Sand
网页2014年8月20日 This work focuses on the use of copper slag, as a partial replacement of sand for use in cement concrete and building construction. Cement mortar mixtures prepared with fine aggregate made up of different proportions of copper slag and sand were tested for use as masonry mortars and plastering. Three masonry wall panels of
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Suitability of Soil Washed Sand as Fine Aggregates to
网页2021年8月12日 According to previous studies, researchers have studied on potential alternatives for river sand to use as fine aggregates in the concrete production. The authors in [6] have studied on the use of off shore sand as a fine aggregate for the concrete production. Their findings revealed that the concrete produced with off shore sand
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Sawdust as an Alternative Material for Sand in Concrete
网页The study determined the strength of concrete mixture with sand and concrete mixture with sawdust in three different curing periods; 7 days, 16 days and 28 days. Experimental method was used by the researchers for it examined and investigated the possibility of using sawdust as a fine aggregate in concrete mixture with both mixtures categorized
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The Production of Sustainable Concrete with the
网页2020年9月24日 The replacement of sand with GGBFS as fine aggregate improved the workability of concrete mixture: the slump test result moved from 150 mm of a conventional paste to 180 mm. This result may be
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Use of Foundry Sand as Partial Replacement of Natural Fine Aggregate
网页2018年12月31日 3.2 Compressive Strength. Figures 3 and 4 show the compressive strength after 7 days and 28 days respectively for the different concrete mixes having FS as fine aggregates partially. It is clearly observed that compressive strength of different concrete mixes with partial replacement of NFA by FS has increased up to 20%
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The way forward to sustain environmental quality through
网页2022年3月24日 Consistently, 47 and 59 billion tonnes of development material are mined all-inclusive (Steinberger et al. 2010), out of which, the speediest and the biggest extraction share (68 to 85%) is for fine aggregate (sand) and (32 to 50%) is for coarse aggregate (Krausmann et al. 2009). In a roundabout way, the worldwide utilization of aggregates is
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Recent Trends in Replacement of Natural Sand With
网页2013年12月17日 alternatives, such as offshore sand, quarry dust and filtered sand have also been made (W.P.S. Dias et al 2008)[2]. Physical as well as chemical properties of fine aggregate affect the durability, workability and also strength of concrete, so fine aggregate is a most important constituent of concrete and cement mortar. Generally
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Study on Suitability of Sawdust as an Alternate for Fine Aggregate
网页2022年11月9日 The mix ratio adopted to prepare concrete is 1:1.5:3 with a water-to-cement ratio of 0.55 natural sand used as a fine aggregate in concrete and the same was partially replaced with sawdust at various percent of 2.5, 5.0, 7.5, 10, and 12.5%. Two sets of concrete were produced; one set was incorporated with fly ash (10% of the cement
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(PDF) Alternatives to Conventional Cement-Sand Mortar
网页2015年7月25日 Abstract and Figures. Masonry Mortar is basically a binding agent that is composed of cementitious material, fine aggregates and water. The main purpose of the mortar is to sew masonry units
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Study on sea sand as a partial replacement for fine
网页2020年5月11日 1993). River sand is becoming a scarce material. Sand mining from our rivers has become objectionably excessive. It has now reached a stage where it is killing our rivers day by day. As natural sand deposits have become depleted near some areas of metropolitan growth, the use of alternatives to sand as a replacement for fine aggregate
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Review on Alternatives of Aggregates with Alternative
网页2020年12月1日 The optimum percentage replacement of river sand by recycled fine aggregate was between 50% to 75% but was much closer to 75% for that of recycled from construction (new) and closer to 50% for
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Studies on use of Copper Slag as Replacement Material for River Sand
网页2014年8月20日 This work focuses on the use of copper slag, as a partial replacement of sand for use in cement concrete and building construction. Cement mortar mixtures prepared with fine aggregate made up of different proportions of copper slag and sand were tested for use as masonry mortars and plastering. Three masonry wall panels of
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The Utilization of Quarry Dust as Fine Aggregates in
网页mixture. It is conventional that Sand is being used as fine aggregate in concrete. The major source of sand is river beds which have been extensively used and depleted. This depletion and thus shortage of sand has caused a noticeable increase in the price of sand. Hence we are forced to think of alternative materials.
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