effect of recycled sand content on characteristics of mortars

effect of recycled sand content on characteristics of mortars

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First, the research examined the effects of recycled sand content on the characteristics of mortar-density and compressive and flexural strength-by using recycled sand contents of 0, 5, 10, 15, 20 ...

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Dec 01, 2014  Efforts have been made to examine the addition of recycled sand in cement-based mortars by either substituting a part of the natural sand (Lima and Leite, 2012, Miranda and Selmo, 2006a, Miranda and Selmo, 2006b) or by using 100% recycled fine aggregates (Corinaldesi et al., 2002, Jiménez et al., 2013, Martínez et al., 2013, Neno et al., 2013 ...

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Mortars with standard sand have been prepared as references and, according to the previous studies [24], experimental recycled mortars have been casted by using recycled washed sand (RSw), as washing process helps to eliminate the finer particles that affect workability and water absorption.

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Feb 01, 2017  In this study the influence of the utilization of ceramic recycled aggregates in the properties of masonry mortars is analyzed. The mortars were made with an initial relation cement–sand of 1: 6. The recycled aggregate used was added to the mixture in percentages of replacement of 20%, 35%, 50%, 70% and 100% of natural aggregate.

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Recycled sand in lime-based mortars - ScienceDirect

Dec 01, 2014  Efforts have been made to examine the addition of recycled sand in cement-based mortars by either substituting a part of the natural sand (Lima and Leite, 2012, Miranda and Selmo, 2006a, Miranda and Selmo, 2006b) or by using 100% recycled fine aggregates (Corinaldesi et al., 2002, Jiménez et al., 2013, Martínez et al., 2013, Neno et al., 2013 ...

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[PDF] Influence of fine recycled concrete aggregates on ...

Abstract Fine recycled concrete aggregates (FRCA) also called recycled sand, having particle sizes smaller than 5 mm, are essentially composed of mortar and hardened cement paste. Therefore they induce a large water demand which makes them hard to recycle into mortar and concrete. In this paper, the properties of mortars containing FRCA have been studied, including fresh properties, mechanical ...

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Mechanical behavior of 3D printed mortar with recycled ...

Jul 10, 2020  The recycled sand employed into the mix of 3D printed mortar and the green strength development at early ages was explored. • Recycled sand has significant effect on the early age behavior for those mature specimens. • The addition of recycled sand will change the mortar from plastic material to solid material in the later stage.

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Effects of Manufactured Sand Characteristics on Water ...

The testing phase, using mortars rather than full-scale concrete mixtures, enabled the isolation of sand attributes, such as particle angularity, particle size, and fine-particle content; it also ...

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Using Fine Recycled Concrete Aggregate for Mortar Production

possible to use recycled aggregates in mortars without loss content to be adopted depend on the nature of the recycled material. Thus complete studies are needed for each type. 3. Sequence of Testing 3.1. Materials used This research was divided into two experimental stages to determine how replacing sand with fine recycled concrete

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Effect of Pre-Wetting Recycled Mortar Aggregate on the ...

In this research we evaluated the use of recycled fine mortar aggregate (RFMA) as a fine aggregate for new masonry mortar creation. The pre-wetting effect on the aggregate before creating the mixture was analyzed as a method to reduce its absorption potential. A control mixture of conventional mortar and two groups of recycled mortars were designed with a partial replacement of natural sand by ...

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Reduction of the cement content in mortars made with fine ...

this objective the effect on the mortars’ performance of both reducing the cement content and at the same time incorporating given ratios of fine crushed concrete aggregates was analysed, through the deter-mination and comparison of the main characteristics of the mortars: reference mortars without waste and mortars with different contents ...

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Reduction of the cement content in mortars made with fine ...

Mar 19, 2013  Alaejo P, Lobet A, Perez D (2011) Effect of recycled sand content on characteristics of mortars and concretes. J Mater Civ Eng 23(4):414–422. Article Google Scholar 16. Chen ZP, Wang N, Zhang SQ, Zheng SF (2011) Experimental study on basic behaviour of recycled fine aggregate mortar.

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Properties and Application of Sea Sand in Sea Sand ...

Dec 12, 2020  Contradictory results have been published on the effect of sea sand and seawater in concrete as opposed to conventional river sand and freshwater. The majority of studies show equivalent, if not better, results when sea sand and seawater are used in

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View of Characterization and influence of fine recycled ...

The quality of recycled aggregates in terms of physical, mechanical and chemical characteristics is determined mainly by the content of adhered mortar, contaminants and impurities (2, 4). Bonded mortar content may be reduced by increasing the crushing process performed in the treatment plants (5, 6).

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(PDF) Effect of aqueous sodium silicate on properties of ...

Dapena E, Alaejos P, Lobet A, Pérez D (2010) Effect of recycled 31. Ali B, Qureshi LA (2019) Influence of glass fibers on mechani- sand content on characteristics of mortars and concretes. J cal and durability performance of concrete with recycled Mater Civ Eng 23:414–422 aggregates.

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Volume change and strength characteristics of normal and ...

Volume change and strength characteristics of normal and high-strength mortars: effect of aggregate type and water-binder ratio Ali H. Nahhab1* and Ghaida Faeq A. Zahra1 Abstract: This study investigated the impact of aggregate type on the volume changes including drying shrinkage, autogenous shrinkage, and swelling for mor-

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Influence of Treatment Methods on the Strength and ...

May 05, 2015  This paper attempts to compare the effect of chemical as well as mechanical treatment approaches in reducing the mortar attached to aggregate. Six series of concrete mixtures are prepared using natural aggregate, recycled aggregate, recycled aggregate treated with HCl and H 2 SO 4 , recycled aggregate obtained after scrubbing treatment, and ...

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Formulation parameters effects on the performances of ...

Dec 27, 2019  The density, air content, and slump of mortars in fresh state were measured with a special attention devoted to the effect of pre-saturation of recycled sand on the slump. In the hardened state, the microstructure was studied by means of water accessible porosity test and mercury intrusion porosimetry test.

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Effect of Recycled Homogeneous Ceramic Waste Aggregates

utilizing the homogeneous ceramic wastes as recycled aggregates and partial cement replacement and verifies the effect of this replacement on water absorption of mortar. River sand fully replaced by recycled ceramic aggregates and 40% of cement was replaced by fine ceramic powder.

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View of Characterization and influence of fine recycled ...

The quality of recycled aggregates in terms of physical, mechanical and chemical characteristics is determined mainly by the content of adhered mortar, contaminants and impurities (2, 4). Bonded mortar content may be reduced by increasing the crushing process performed in the treatment plants (5, 6).

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Using Fine Recycled Concrete Aggregate for Mortar Production

possible to use recycled aggregates in mortars without loss content to be adopted depend on the nature of the recycled material. Thus complete studies are needed for each type. 3. Sequence of Testing 3.1. Materials used This research was divided into two experimental stages to determine how replacing sand with fine recycled concrete

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Sustainable mortar mix using recycled fines obtained from ...

the effects of recycled concrete fine aggregate on the cement content of mortar and reported good results in water absorption and retentivity. Also, mechanical performance of the prepared mortar mix of cement-sand ratio 1:5 with 15% recycled concrete fines

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Reduction of the cement content in mortars made with fine ...

this objective the effect on the mortars’ performance of both reducing the cement content and at the same time incorporating given ratios of fine crushed concrete aggregates was analysed, through the deter-mination and comparison of the main characteristics of the mortars: reference mortars without waste and mortars with different contents ...

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Characterisation of recycled aggregates and mortar studies ...

To study the influence of fine recycled concrete aggregate on the properties of mortar a water by cement (w/c) ratio of 0.5 was fixed and samples with a replacement percentage of 20%, 50% and 100% of river sand was prepared.

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Effect of Pre-Wetting Recycled Mortar Aggregate on the ...

Mar 22, 2021  materials Article Effect of Pre-Wetting Recycled Mortar Aggregate on the Mechanical Properties of Masonry Mortar René Sebastián Mora-Ortiz 1,* , Ebelia Del Angel-Meraz 1, Sergio Alberto Díaz 1, Francisco Magaña-Hernández 1, Emmanuel Munguía-Balvanera 1, Mayra Agustina Pantoja Castro 1, Justino Alavez-Ramírez 2 and Leobardo Alejandro Quiroga 1 Citation: Mora-Ortiz,

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Research on River Sand Substitutes for Concrete Production ...

characteristics that since it has been subjected to years of abrasion, its particle shape is more or less rounded and smooth, and since it has been subjected to years of washing, it has very low silt and clay contents. • The characteristics of river sand would improve the workability of concrete and mortar compared to the use of alternatives ...

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A Review on the Usage of Recycled Sand in the Construction ...

Jun 22, 2020  The construction industry requires natural sand for many applications. The recycled sand obtained from industrial operations can also be utilized in construction activities. Many industries generate waste sand as a byproduct. The material generated from this discarded molds and cores is usually known as “used foundry sand,” “waste foundry sand,” or “spent foundry sand.”

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Plastic shrinkage and cracking of 3D printed mortar with ...

This study employed the recycled sand into the mix of 3D printed mortar and explored the green strength development at early ages within 2.5 h after extrusion. 25% and 50% natural sand was ...

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Formulation parameters effects on the performances of ...

Dec 27, 2019  The density, air content, and slump of mortars in fresh state were measured with a special attention devoted to the effect of pre-saturation of recycled sand on the slump. In the hardened state, the microstructure was studied by means of water accessible porosity test and mercury intrusion porosimetry test.

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Characterization and influence of fine recycled aggregates ...

acteristics is determined mainly by the content of adhered mortar, contaminants and impurities (2, 4). Bonded mortar content may be reduced by increas-ing the crushing process performed in the treatment plants (5, 6). Vegas et al. (7) studied the technical feasibility of . using fine fraction recycled aggregate from concrete rubble.

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Effect of using Recycled glass as supplementary ...

The utilization of waste glass as cement replacement for cement mortar preparation is suitable since in terms of physical and chemical characteristics, glass can be considered a pozzolanic-cementitious material. The compressive strength of cement mortar decreases with the increase of recycled glass content.

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Effect of Waste Glass Addition as a Replacement for Fine ...

When comparing the strength, the obtained improvement in split tensile strength was the least affected. The obtained effect for the increased analysed properties of the glass sand aggregate content has been rarely reported. Moreover, it was determined that by increasing the recycled glass sand aggregate content, the density of mortar decreased.

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Influence of recycled sand containing fillers on the ...

with recycled sand increased. Moreover, it is shown that the finest fraction of recycled sand (0/0.63 mm) has a detrimental effect on the mechanical properties of mortars. These experiments based on the use of CDW can be extended to developing countries like Algeria, where the

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Study the effect of partially replacement sand by waste ...

Dec 05, 2017  Sand has an important effect on the characteristics of the mortar because it forms the master volume of mortar; therefore the chosen of convenient aggregates in mortar is very substantial . De Schutter and Poppe demonstrate an exceptionally noteworthy impact of the sand sort on the mortar

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Optimizing manufactured sand content in mortars and its ...

mortars. To achieve that, the characteristics of the fresh and hard state were evaluated in order to carry out a comprehensive analysis on the influence of the method on the performance of mortars. From the results emerges that it is possible to maximize the content of manufactured aggregates without detrimental effects on compressive strength.

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How sand affects mortar - Concrete Construction

Mortar appearance Sand also affects mortar color. To avoid color variation in mortar joints, buy all the sand for a job from the same supplier, urges Brian Viehmann, plant manager o f A l l P u r p o s e S a n d C o . i n Bridgeton, Mo. In the St. Louis area, most of the sand is dredged from the bottom of the Mississip-pi and Missouri rivers by ...

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Sustainable mortar mix using recycled fines obtained from ...

the effects of recycled concrete fine aggregate on the cement content of mortar and reported good results in water absorption and retentivity. Also, mechanical performance of the prepared mortar mix of cement-sand ratio 1:5 with 15% recycled concrete fines

More

View of Characterization and influence of fine recycled ...

The quality of recycled aggregates in terms of physical, mechanical and chemical characteristics is determined mainly by the content of adhered mortar, contaminants and impurities (2, 4). Bonded mortar content may be reduced by increasing the crushing process performed in the treatment plants (5, 6).

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The Influence of Nano-SiO2 and Recycled Polypropylene ...

Oct 20, 2019  This work is aimed to study the possibility of recycling plastic waste (polypropylene (PP)) as aggregate instead of sand in the manufacturing of mortar or concrete. For this, an experimental study was carried out to evaluate the influence of nano-SiO 2 and recycled PP plastic particles' content on physical, mechanical, and shrinkage properties and microstructure of the mortars with recycled

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A proposal for the maximum use of recycled concrete sand ...

Martínez et al. replaced by volume 100% of natural sand with different types of recycled sand and found that most of the natural aggregate mortars achieved higher mechanical properties than the recycled aggregate mortars. Very fine RCA, with particle sizes less than 0.150 mm, have also been used in mortars.

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Effect of Copper Slag and Recycled Aggregate in the ...

Jul 30, 2018  However, it seems that sand has higher fines content than copper slag. Tests to determine specific gravity and water absorption for copper slag and sand were carried out in accordance with ASTM C128. The results presented in Table.1 shows that copper slag has a specific gravity of 3.91 which is higher than that for sand (2.57) and OPC (3.12 ...

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Plastic shrinkage and cracking of 3D printed mortar with ...

This study employed the recycled sand into the mix of 3D printed mortar and explored the green strength development at early ages within 2.5 h after extrusion. 25% and 50% natural sand was ...

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Recycled Glass as Aggregate for Architectural Mortars ...

Sep 24, 2018  The possibility of recycling mixed colour waste glass as it is for manufacturing decorative architectural mortars, has been investigated. In mortars, the 0–33–66–100% of calcareous gravel volume has been replaced with recycled glass cullets, with no other inorganic addition. To mitigate the possible alkali–silica reaction, mixes with a hydrophobic admixture were also compared.

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Investigation on the effects of polymer impregnated ...

Nov 27, 2012  Polyester recycled from PET and epoxy resins are used as binders. It is found that the recycled sand does influence the mechanical properties, i.e., the polymer mortars made with recycled sand presents a decrease in mechanical characteristics of polymer mortars.

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Fresh-State Properties of Mortars with Recycled Glass ...

Sep 05, 2018  This effect also holds true for a higher a/c ratio; however, mortars with RF ≥ 47.06% and ratio C show a similar behavior to that reported in the densities, with the difference that here it is in the opposite, or decreasing, sense; the air content in the mortar is maintained even when the quantity of RGA is increased.

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A Review on the Usage of Recycled Sand in the Construction ...

Jun 22, 2020  The construction industry requires natural sand for many applications. The recycled sand obtained from industrial operations can also be utilized in construction activities. Many industries generate waste sand as a byproduct. The material generated from this discarded molds and cores is usually known as “used foundry sand,” “waste foundry sand,” or “spent foundry sand.”

More