Results of the experimental studies show that resistance to penetration of water as proved by rapid chloride penetration test and water permeability test, is increased with increasing proportion of manufactured sand in concrete. Results show that river sand can be …
This study explores the use of rice husk ash (RHA) and manufactured sand (M-sand) as replacements for cement and fine aggregate, respectively, in lightweight oil palm shell concrete (OPSC). In the first stage of this study, the effect of various cement replacement levels, with RHA (5%, 10%, 15%, and 20%) and sand replacement …
Some studies has been reported the effect of M-sand on strength and durability properties of concrete. Some key relevant research findings are discussed below. Patel and …
Differ from natural sand, manufactured sand has special morphology features such as rough surface, irregular particle shape, angular edges and distinguish characteristics of stone powder contained, which has some special effects on the workability, basic mechanical properties and durability of concrete.
Focusing on the above problems, granite dust was used as partial fly ash replacement in granite manufactured sand concrete to achieve the comprehensive application of granite dust and manufactured sand. The concrete slump was designed as 180 ± 10 mm, meeting the pumping requirements. The effects of the workability, …
1. Introduction. Whereas the high-grade natural river sand (RS) gradually decreased in more and more areas in China, the market share of manufactured sand (MS) keeps sharp increasing for the boom of infrastructure construction [1], [2].Transported long distance by water or wind, RS is rounded and has characteristic abrasion patterns on its …
Proc. of the InternationalConference on Science and Engineering (ICSE 2011) K 1 : 1.47 : 2.95 / 0.44 Results and Discussion From Table 4 it is found that the quantity of fine aggregate
Micro fines are used in the production of M30 grade concrete in different proportions (0 %, 5 %, 10 %, 15 %, 20 %, and 25 %). Six Manufactured Sand mixes and one river sand mix were created for the purpose of testing and comparing them. The compressive strength of manufactured sand with the right quantity of micro particles …
Manufactured sand is one of the effective ways to alleviate the extreme shortage of natural sand in the construction industry. This paper uses granite and limestone manufactured sand to study the …
This study implements hybrid machine learning models that utilize six commonly employed meta-heuristic algorithms to predict the compressive strength (CS) of manufactured sand concrete (MSC). Six hybrid artificial neural network (ANN) models were created utilizing multiple meta-heuristic algorithms of different groups. A sum of …
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. ... but has little effect on the durability of concrete. Shen et al. [23] found that MS can ...
The overuse level of cement and natural sand for civil industry has several undesirable social and ecological consequences. As an answer for this, industrial wastes called by-products (pozzolanic materials) like fly ash, GGBFS, silica fume and metakaolin can be used to interchange partially cement and natural fine aggregate by …
have been done so far on the effects of LF from crushed sand on the durability properties of self-compacting concrete. The. aim. of the present experimental study is devoted to investigate the effects of quarry limestone fines as crushed sand substitution on the workability, rheological,
This paper proposes a prediction of the compressive strength of concrete with manufactured sand (MS-concrete) based on an ensemble classification and regression tree (En_CART) method. A data set containing 1,350 original measured strengths of 328 concrete mixtures from actual engineering projects were used for …
According to the findings, using synthetic sand in place of sand as fine aggregate increases durability attributes by up to 70%, and using it exclusively results in concrete with...
Durability Phenomenon in Manufactured Sand Concrete: Effects of Zinc Oxide and Alcofine on Behaviour. April 2021. Silicon 13 (4) DOI: 10.1007/s12633-020 …
The results shows that there is an increase in the durability properties up to 70 % level of replacements of sand with manufactured sand as fine aggregate and for 100 % use of manufactured sand ...
This paper uses granite and limestone manufactured sand to study the effect of high fines content on the durability of high-strength manufactured sand concrete, and analyzes its influence ...
M-sand concrete with 5% fines exhibits optimum strength and durability properties with presence of dense CSH Gel and lesser number of pores. However, from …
According to the findings, using synthetic sand in place of sand as fine aggregate increases durability attributes by up to 70%, and using it exclusively results in concrete with superior ...
Concrete has become a versatile material by adapting itself to user needs, from pavers to skyscrapers. Escalated demand for concrete is the prime reason for the exploitation of resources and increased carbon emissions. This research focuses on reducing the environmental impact of cement manufacturing by partly replacing cement …
Request PDF | Durability Phenomenon in Manufactured Sand Concrete: Effects of Zinc Oxide and Alcofine on Behaviour | Despite several studies focusing on producing sustainable concrete with ...
Traditional natural river sand is used as a fine aggregate for concrete, but due to the severe environmental situation in recent years, many places have asked for a ban or restriction on the extraction of river sand. This has resulted in an increasing demand for concrete using machine-made sand instead of natural sand. The estimation and …
The results shows that there is an increase in the durability properties up to 70 % level of replacements of sand with manufactured sand as fine aggregate and for 100 % use of manufactured sand ...
Abstract: Manufactured sand is one of the effective ways to alleviate the extreme shortage of natural sand in the construction industry. This paper uses granite and limestone manufactured sand to study the effect of high fines content on the durability of high-strength manufactured sand concrete, and
Focusing on the above problems, granite dust was used as partial fly ash replacement in granite manufactured sand concrete to achieve the comprehensive application of granite dust and manufactured sand. The concrete slump was designed as 180 ± 10 mm, meeting the pumping requirements. The effects of the workability, …
The manufactured sand i.e. m-sand is a material which can replace the natural fine aggregates if used in proper proportion. Also, the m-sand can be produced in a good amount so that the construction cost is also not affected. In the present work, manufactured sand concrete is studied for the durability properties.
The concrete mix containing 50% RCA, 60% GGBS and 7% lime gives optimum results for M25 grade of concrete. Kavya et al. [9] evaluated effect of m-sand in place of fine aggregate in concrete having M30 and M65 grade and get compressive strength higher than the conventional concrete i.e., 68 MPa and 39.6 MPa of m-sand …
Those studies [3,4, 5, 6,7,8] have examined the influence of complete or partial replacement of river sand in concrete-on-concrete properties using manufactured sand. Some of them demonstrated ...
