scholarly journals Analysis of the mechanical properties of the concrete with partial substitution of the kind’s aggregate glass powder

2021 ◽  
Vol 9 (6) ◽  
pp. 406-425
Author(s):  
Paulo Ricardo Alves dos Reis Santos ◽  
Diovana da Silva Santos ◽  
Max Silva de Almada ◽  
Lirana Lamara Barreto da Silva ◽  
Italo Gutierry Carneiro da Conceição ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Large Scale ◽  
Glass Powder ◽  
Experimental Methodology ◽  
Partial Substitution ◽  
Fine Aggregate ◽  
Structural Concrete ◽  
Natural Sand ◽  
Hardened State ◽  
Object Of Study

In this study, the influence of partial introduction as glass as fine aggregate on the composition of simple concrete is analyzed, considering that sand (fine aggregate currently used) has been used on a large scale in civil construction over the years and has been affecting the environment. The main objective of this research was to analyze the mechanical properties of concrete, partially replacing the natural sand with another fine aggregate made from glass residues, evaluating the behavior presented at the end of each test using different percentages of this material as fine aggregate in the concrete composition. From an experimental methodology that consisted of determining an object of study (concrete), selecting the variable that would possibly be able to influence it (glass powder) and defining the ways of controlling and observing the effects that the variable would produce on the object, an interpretation of how the mechanical properties of the glass powder that affect the performance of structural concrete is presented. The granulometry was subsequently analyzed, the tests carried out both in the fresh and hardened state of the concrete, and identified that the glass in a certain percentage proves to be viable. Finally, it can be concluded that the partial inclusion of glass affects the mechanical properties of structural concrete, and can present quite satisfactory results, both related to the environment, since the sand would not be used entirely as fine aggregate or in reaching a resistance suitable for its final use.

scholarly journals The Use of Sheet Glass Powder as Fine Aggregate Replacement in Concrete

2010 ◽  
Vol 4 (1) ◽  
pp. 65-71 ◽  
Author(s):  
M. Mageswari ◽  
Dr. B. Vidivelli
Keyword(s):  
Sheet Glass ◽  
Glass Powder ◽  
Fine Aggregate ◽  
Test Results ◽  
Natural Sand ◽  
Aggregate Concrete ◽  
Fine Aggregates ◽  
Interesting Possibility ◽  
Compact State ◽  
Conservation Of Natural Resources

Sheet glass powder (SGP) used in concrete making leads to greener environment. In shops, near by Chidambaram many sheet glass cuttings go to waste, which are not recycled at present and usually delivered to landfills for disposal. Using SGP in concrete is an interesting possibility for economy on waste disposal sites and conservation of natural resources. This paper examines the possibility of using SGP as a replacement in fine aggregate for a new concrete. Natural sand was partially replaced (10%, 20%, 30%, 40% and 50%) with SGP. Compressive strength, Tensile strength (cubes and cylinders) and Flexural strength up to 180 days of age were compared with those of concrete made with natural fine aggregates. Fineness modulus, specific gravity, moisture content, water absorption, bulk density, %voids, % porosity (loose and compact) state for sand (S) and SDA were also studied. The test results indicate that it is possible to manufacture concrete containing Sheet glass powder (SGP) with characteristics similar to those of natural sand aggregate concrete provided that the percentage of SGP as fine aggregate is limited to 10-20%, respectively.

Manufacture of High-Performance Concrete Made with Powdered Polyester Resin Waste and Carboxylic-Ester Based Superplasticizer

2015 ◽  
Vol 1129 ◽  
pp. 523-529 ◽  
Author(s):  
A. Rodríguez ◽  
Pablo Luis Campos ◽  
J. Garabito ◽  
Juan García ◽  
Isabel Santamaría
Keyword(s):  
Silica Fume ◽  
High Performance ◽  
Polyester Resin ◽  
High Performance Concrete ◽  
The Other ◽  
Partial Substitution ◽  
Fine Aggregate ◽  
Hardened State ◽  
Aggregate Material ◽  
Research Show

A high-performance concrete design is presented that incorporates powdered polyester resin waste as a fine aggregate material in partial substitution of sand, with additions of both a superplasticizer based on carboxylic ethers and silica fume. The potential application of the powdered polyester resin and its properties as an aggregate are both analysed as well as the mechanical behaviour, in both the fresh and the hardened states, of the concrete. Both the flexural and the compressive strength of the concrete were shown to depend on the amount of waste used in substitution of the sand. The results of the research show that the designed concrete reaches the resistances of a high performance concrete with values ​​above 50 MPa. On the other hand, the rest of its properties are equivalents, both in the fresh and hardened state, proportional to the amount of powdered polyester resin that is added. However, to achieve this, the use of superplasticizers additives and admixtures of silica fume is necessary.

The Study of the Properties of Concrete Containing Waste Powder as a Fine Aggregate

2017 ◽  
Author(s):  
Magdalena Dobiszewska ◽  
Krzysztof Wrzecion
Keyword(s):  
Asphalt Mixture ◽  
Cement Industry ◽  
Partial Substitution ◽  
Partial Replacement ◽  
Economic Losses ◽  
Fine Aggregate ◽  
Natural Sand ◽  
Cement Production ◽  
Freeze Resistance ◽  
Concrete Production

Concrete production consumes much energy and large amounts of natural resources. It causes environmental, energy and economic losses. Cement industry contributes to production for about 7% of all CO2 generated in the world. Every ton of cement production releases nearly one ton of CO2 to atmosphere. Thus the concrete and cement industry changes the environment appearance and affects it to a great extent. On the other hand, there is an increase in demand and decrease in natural sources of concrete constituents, like sand. The use of rock dust as the replacement for natural sand will solve the problem of dust disposal. The present study shows the results of the research concerning the modi-fication of concrete with waste dust. It is the waste from the preparation of aggregate used in asphalt mixture production. Concrete modification consists in that the powder waste is added to concrete as partial replacement of fine aggregate. Previous studies have shown that analysed waste has a beneficial effect on compressive strength, flexural strength as well as freeze resistance. The use of mineral powder as the partial substitution of fine aggregate allows for the effective management of industrial waste and improves some properties of concrete.

The Effect of Bond Characteristics between Steel Slag Fine Aggregate and Cement Paste on Mechanical Properties of Concrete and Mortar

1987 ◽  
Vol 114 ◽  
Author(s):  
Wang Yuji
Keyword(s):  
Mechanical Properties ◽  
Cement Paste ◽  
Steel Slag ◽  
Fine Aggregate ◽  
Interfacial Zone ◽  
Curing Time ◽  
Natural Sand ◽  
Concentration Of Ions ◽  
Hydrated Products ◽  
Bond Characteristics

ABSTRACTThe ordinary fine aggregate in concrete has been replaced by ground and sieved steel slag fine aggregate, treated and exposed to air for three months. Compared with concrete made from natural sand, properties such as compressive strength, flexural strength, elastic modulus, permeability and abrasion resistance are considerably improved. The improvement increases with a decrease in w/c ratio, an increase in curing time and an increase in the replacement weight of sand. These results are due to the fact that the steel slag contains some active minerals such as C3S, C2S, C4AF, etc., and shows favorable surface physical characteristics that improve the bond between steel slag particles and cement paste. The results of XRD, SEM and EPM microhardness showed that there are heavier concentration of ions, with finer crystals and a lower degree of CH orientation at the interfacial zone between steel slag particles and cement paste. The study also found small cementitious and fibrous C-S-H crystals growing from the fine aggregate, which are linked with hydrated products from cement paste making the bond and structural characteristic more favorable with cement. The steel slag fine aggregate is an active mineral similar to cement. The bond between the aggregate and cement paste is strengthened both physically and chemically.

scholarly journals Utilization of Molybdenum Tailings in Concrete Manufacturing: A Review

2019 ◽  
Vol 10 (1) ◽  
pp. 138 ◽  
Author(s):  
Shan Gao ◽  
Xiaowei Cui ◽  
Sumei Zhang
Keyword(s):  
Chemical Composition ◽  
Mining Industry ◽  
Performance Comparison ◽  
Microscopic Structure ◽  
Fine Aggregate ◽  
Structural Concrete ◽  
Natural Sand ◽  
Freeze Thaw ◽  
Fine Aggregates ◽  
Cement Binder

Dealing with mineral tailings is one of the most important topics for solving the environmental problems in the mining industry. Among the techniques converting stacked molybdenum tailings to reusable cleaner products, one of the most effective ones is to use molybdenum tailings in concrete productions. The physical properties including density, microscopic structure and finesse module, and chemical composition of molybdenum tailings are similar with those of natural sand. The radionuclide assessment of molybdenum tailing meets the requirements for using as structural materials. Therefore, Molybdenum tailing is suitable to be used as the replacement of cement and fine aggregates in mortar and concrete. Based on the results of strength and duration performance comparison, the usage of molybdenum tailing as a replacement of natural sand is a more feasible way than that of ground super-fine molybdenum tailings in cement binder. It is feasible to use molybdenum tailings as fine aggregate in the preparation of structural concrete. When the amount of ground super-fine molybdenum tailings replacing cement is less than 10%, it is beneficial to improve the freeze-thaw and carbonization resistance of the concrete.

scholarly journals Studies on manufactured sand effect on mechanical properties of geopolymer concrete as replacement of river sand in fine aggregate

2021 ◽  
Vol 309 ◽  
pp. 01114
Author(s):  
K. Veera Babu ◽  
T. Srinivas ◽  
Mahathi Tummala
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Construction Material ◽  
Environmental Concerns ◽  
Fine Aggregate ◽  
Geopolymer Concrete ◽  
River Sand ◽  
Natural Sand ◽  
Manufactured Sand ◽  
Low Calcium

Concrete is the most adaptable, long-lasting, and dependable construction material on the planet. There are numerous environmental concerns associated with the production of OPC, and natural sand is becoming more expensive and scarce as a result of unlawful river sand dredging. The greatest replacement material for traditional concrete is geopolymer concrete with low calcium fly ash. The purpose of this paper is to investigate the mechanical properties of geopolymer concrete of grades G30 and G50, which are equivalent to M30 and M50, when river sand is substituted in various quantities with manufactured sand, such as 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, and 100%. When compared to the equivalent grades of controlled concrete, geopolymer concrete improves mechanical properties such as compressive, tensile, and flexural strengths.

scholarly journals ANÁLISE DA VIABILIDADE DE UTILIZAÇÃO DO LODO DE INDÚSTRIA FRIGORÍFICA EM SUBSTITUIÇÃO PARCIAL DO AGREGADO DE CONCRETO NÃO ESTRUTURAL

2021 ◽  
Vol 12 (3) ◽  
pp. 23-30
Author(s):  
Alexandre Teixeira De Souza ◽  
Ruth Mello da Silva ◽  
Stefany Camargo Miranda
Keyword(s):  
Axial Compression ◽  
Civil Engineering ◽  
Lower Proportion ◽  
Effluent Treatment ◽  
Partial Substitution ◽  
Fine Aggregate ◽  
Solid Residue ◽  
Structural Concrete ◽  
Correct Treatment

Much of thesludge present in the effluent treatment stations is destined for disposal in an inappropriate place or without the correct treatment, which can significantly affect the environment. Therefore, the current research aims to analyze the dry sludge of a refrigeration industry as a partial substitution of fine aggregate for non-structural concrete, making it necessary to choose features with a lower proportion of this in order not to extrapolate consumption costs. The specimens subsidized by NBR 5738 weremolded with partial addition of dry refrigerator sludge to replace fine aggregate, being 2%, 5% and 8%, respectively, and tested for axial compression in the Civil Engineering laboratory of UNOESTE. Through the results obtained, there was an increase in resistance compared to the standard trace in the specimens with less addition of sludge, however the solid residue retains a large amount of water, making it necessary to choose a trace with a lower proportion.

scholarly journals Properties of Sustainable Concrete with Mussel Shell Waste Powder

2020 ◽  
Vol 14 (1) ◽  
pp. 350-364
Author(s):  
Mohamed El Biriane ◽  
Mohamed Barbachi
Keyword(s):  
Partial Substitution ◽  
Normal Density ◽  
Test Results ◽  
Structural Concrete ◽  
Air Content ◽  
Shell Waste ◽  
Mineral Additive ◽  
Normative Requirements ◽  
Hardened State ◽  
Sustainable Materials

Background: The management of marine waste is a major concern in several countries. Recycling shell waste in concrete formulations may be one of the alternatives for producing sustainable materials at a lower cost. Objective: In this research paper, the performance of ground mussel waste for non-structural concrete formulation has been investigated. Methods: Two alternatives were explored in this research. The first aimed at incorporating treated Mussel Powder (MP) for partial substitution of cement (6, 12, and 24% by weight). The second aimed to investigate the feasibility of using MP as an additive with a proportion of 3, 6, 9 and 12% by weight of cement. Physico-mechanical properties of advanced composites have been studied in both fresh and hardened state through several laboratory tests. Results: The test results indicated that the inclusion of the MP allowed the formulation of concretes with normal density and lower air content. The mechanical behavior was characterized using new formulas adapted to the newly formulated concretes. Based on the obtained results, the treated MP could be used as a cement substitute with a proportion up to 12% or as a mineral additive with a percentage of 3% to produce a non-structural concrete that meets the normative requirements in terms of compressive and tensile strength. Conclusion: The recycling of mussel waste in concrete will contribute to the preservation of the environment by reducing the quantity of shellfish waste. The concept of “green” concrete can be achieved through the use of the formulated concretes in the paving works or as a blinding concrete.

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