المنتجات الساخنة
A sustainable solution to excessive river sand mining by
网页2022年12月1日Excessive river-sand mining for use as fine aggregate in concrete is responsible for riverbed degradation, which causes a wide range of problems, including the loss of water-holding soil strata and the slippage of riverbanks ( Sankh et al., 2014 ).
Contact
Cleaner production of concrete by using industrial by
网页2021年10月1日Excessive river sand mining for use as fine aggregate in concrete is accountable for the deterioration of the river bed. Furthermore, floods due to changes in
Contact
Sand: The Fine Aggregate SpringerLink
网页2014年1月1日Properties of fine aggregate (sand) affect concrete properties such as durability, strength, thermal properties, unit weight,
Contact
Replacement of Sand with Bauxite Mining
网页2019年12月31日The aim of this study is to examine the possibility of using bauxite mining waste as a fine aggregate replacement for concrete
Contact
Investigation of the effect of substituting conventional
网页2023年5月10日Cement concrete is a standard construction material because it can be shaped easily in the plastic state, and then, once it hardens, it can withstand enormous
Contact
Cleaner production of concrete by using industrial by
网页Use of industrial by-products as an alternative fine aggregate in the concrete is a sustainable common solution to the excessive river mining and disposal of industrial by
Contact
ESTHER MOMANYI MSc. thesis.pdf REUSING WASTE
网页Reusing Waste Foundry Sand as Fine Aggregate in Concrete for Paving Blocks Esther Kemunto Momanyi CE300-0013/2012 A thesis submitted to the Pan African University
Contact
Sand mining: how it impacts the environment
网页2 天之前In 2018, the World Wildlife Fund (WWF) warned that sand mining of river deltas, such as the Yangtze and Mekong, is increasing the risk of climate-related disasters, because there’s not enough sediment to
Contact
Feasibility of Quarry Dust to Replace River Sand as Fine
网页2016年7月29日In this study the properties of concrete with quarry dust as fine aggregate is studied to find out its suitability to replace river sand in structural concrete.
Contact
Cleaner production of concrete by using industrial by
网页2021年10月1日To meet the demand of concrete in the construction industry, river sand mining increased drastically in the last few decades. Sand in the river bed is responsible for maintaining environmental equilibrium [1]. Excessive river sand mining for use as fine aggregate in concrete is accountable for the deterioration of the river bed.
Contact
A sustainable solution to excessive river sand mining by
网页2022年12月1日Excessive river-sand mining for use as fine aggregate in concrete is responsible for riverbed degradation, which causes a wide range of problems, including the loss of water-holding soil strata and the slippage of riverbanks ( Sankh et al., 2014 ).
Contact
Sand: The Fine Aggregate SpringerLink
网页2014年1月1日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
Contact
The messy business of sand mining
网页2021年2月18日Sand grains from the desert are fine and rounded, giving low cohesion if used in concrete. Sharp sand Sharper grains, like those from rivers or beaches, have more cohesion and make for a stronger
Contact
(PDF) Use of Mining Waste to Produce Ultra-High
网页2020年5月28日Furthermore, most of the existing studies focus on granite wastes. So, using mining sand waste is an innovative alternative to replace natural aggregates in the manufacture of UHPFRC. The...
Contact
Geomaterials as construction aggregates: a state-of-the-art
网页2021年11月22日Construction aggregates derived from primary resources either by crushing of sound rock masses (crushed stone aggregates) or from naturally occurring unbound clastic sediments (natural sand and gravel aggregates) make the most voluminous mineral raw material exploited by humans nowadays (Fookes 1991; Přikryl
Contact
Influence of marine sand as fine aggregate on
网页2022年3月31日For reduce the consumption and extraction of natural aggregate (river sand), this stone presents washed marine sand (MS) as an alternative fine aggregate that can replace M-Sand. The purpose of this research is to examine the mechanical, micro-structural and durability properties of concrete and cement mortar made with MS as a
Contact
Cleaner production of concrete by using industrial by
网页Use of industrial by-products as an alternative fine aggregate in the concrete is a sustainable common solution to the excessive river mining and disposal of industrial by-products. Although earlier studies on alternative fine aggregates are available, a comprehensive review with a consideration of several industrial by-products is highly
Contact
ESTHER MOMANYI MSc. thesis.pdf REUSING WASTE
网页Reusing Waste Foundry Sand as Fine Aggregate in Concrete for Paving Blocks Esther Kemunto Momanyi CE300-0013/2012 A thesis submitted to the Pan African University institute for Basic Sciences, Technology and Innovation in partial fulfilment of the requirements for the award of the degree of Master of Science in Civil Engineering
Contact
Replacement of Sand with Bauxite Mining
网页2019年12月31日The use of natural sand as fine aggregate in concrete is becoming problematic due to scarcity and pressure on mining of the resource. Alternate sources such as the use of industrial waste...
Contact
(PDF) Study of Gold Mine Tailings Utilization as Fine
网页Because sand is a material for the manufacture of shotcrete, the volume of sand will increase as well. Sand excavation on a large scale can lead to (PDF) Study of Gold Mine Tailings Utilization as Fine Aggregate Material for Producing Shotcrete Based on Concept of Green Technology Harianto Hardjasaputra Academia.edu
Contact
Utilisation of iron ore tailings as aggregates in concrete
网页However, the tensile strength exhibited by the iron ore tailings aggregates concrete in this work increased favourably with ageing and there is 4.8% improvement as compared with similar work where only 20% of natural sand fine aggregates were replaced by iron ore tailings as reported earlier by Ugama et al. (Citation 2014).
Contact
Use of Industrial Silica Sand as a Fine Aggregate in
网页2022年8月19日Industrial silica sand is a by-product obtained from the industries like paint, , rubber etc. It has a similar property with river sand and& M sand. This study explores the effect of high content of silica sand as a partial replacement for fine aggregate for concrete making in construction purpose. In this present research four types of silica
Contact
Use of sea sand as fine aggregate in concrete making
网页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
Contact
Cleaner production of concrete by using industrial by
网页2021年10月1日To meet the demand of concrete in the construction industry, river sand mining increased drastically in the last few decades. Sand in the river bed is responsible for maintaining environmental equilibrium [1]. Excessive river sand mining for use as fine aggregate in concrete is accountable for the deterioration of the river bed.
Contact
Sand: The Fine Aggregate SpringerLink
网页2014年1月1日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
Contact
Characteristics of granite dust concrete with M−sand as
网页2020年1月1日The demand for the fine aggregate increased due to the restriction by the government to extract the sand from the river bed as it causes sand mining. Hence, alternatively manufactured sand is used in place of fine aggregate in the concrete. Due to rapid urbanization in India more public construction activities were in progress.
Contact
The messy business of sand mining
网页2021年2月18日Sand grains from the desert are fine and rounded, giving low cohesion if used in concrete. Sharp sand Sharper grains, like those from rivers or beaches, have more cohesion and make for a stronger
Contact
Geomaterials as construction aggregates: a state-of-the-art
网页2021年11月22日Construction aggregates derived from primary resources either by crushing of sound rock masses (crushed stone aggregates) or from naturally occurring unbound clastic sediments (natural sand and gravel aggregates) make the most voluminous mineral raw material exploited by humans nowadays (Fookes 1991; Přikryl
Contact
Replacement of Sand with Bauxite Mining
网页2019年12月31日The use of natural sand as fine aggregate in concrete is becoming problematic due to scarcity and pressure on mining of the resource. Alternate sources such as the use of industrial waste...
Contact
Influence of marine sand as fine aggregate on
网页2022年3月31日For reduce the consumption and extraction of natural aggregate (river sand), this stone presents washed marine sand (MS) as an alternative fine aggregate that can replace M-Sand. The purpose of this research is to examine the mechanical, micro-structural and durability properties of concrete and cement mortar made with MS as a
Contact
Cleaner production of concrete by using industrial by
网页Use of industrial by-products as an alternative fine aggregate in the concrete is a sustainable common solution to the excessive river mining and disposal of industrial by-products. Although earlier studies on alternative fine aggregates are available, a comprehensive review with a consideration of several industrial by-products is highly
Contact
ESTHER MOMANYI MSc. thesis.pdf REUSING WASTE
网页Reusing Waste Foundry Sand as Fine Aggregate in Concrete for Paving Blocks Esther Kemunto Momanyi CE300-0013/2012 A thesis submitted to the Pan African University institute for Basic Sciences, Technology and Innovation in partial fulfilment of the requirements for the award of the degree of Master of Science in Civil Engineering
Contact
(PDF) Study of Gold Mine Tailings Utilization as Fine
网页Because sand is a material for the manufacture of shotcrete, the volume of sand will increase as well. Sand excavation on a large scale can lead to (PDF) Study of Gold Mine Tailings Utilization as Fine Aggregate Material for Producing Shotcrete Based on Concept of Green Technology Harianto Hardjasaputra Academia.edu
Contact
Utilisation of iron ore tailings as aggregates in concrete
网页However, the tensile strength exhibited by the iron ore tailings aggregates concrete in this work increased favourably with ageing and there is 4.8% improvement as compared with similar work where only 20% of natural sand fine aggregates were replaced by iron ore tailings as reported earlier by Ugama et al. (Citation 2014).
Contact
Use of Industrial Silica Sand as a Fine Aggregate in
网页2022年8月19日The used foundry sand was used as a fine aggregate in concrete up to 30% replacements. Increase of foundry sand addition increases the mechanical strength of the concrete due to the finer size fills the micropores forms the denser concrete. No change in workability of concrete was observed due to the minor additions [ 5 ].
Contact
Use of sea sand as fine aggregate in concrete making
网页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
Contact
Experimental and Estimated Evaluation of Drying
网页2023年5月7日Using fine recycled concrete aggregates (FRCA) in concrete manufacturing points towards achieving sustainability in recycled aggregate valorisation. The higher absorption and amount of hardened cement paste of FRCA may impair concrete performance. One of the most influenced properties is drying shrinkage; this is because
Contact