scholarly journals A Study on Mechanical Properties of Concrete Incorporating Aluminum Dross, Fly Ash, and Quarry Dust

2020 ◽  
Vol 12 (21) ◽  
pp. 9230
Author(s):  
Mohamed Hamdy Elseknidy ◽  
Ali Salmiaton ◽  
Ishak Nor Shafizah ◽  
Ahmed Hassan Saad
Keyword(s):  
Fly Ash ◽  
Waste Disposal ◽  
Filling Material ◽  
River Sand ◽  
Natural Sand ◽  
Aluminum Dross ◽  
Pozzolanic Material ◽  
Concrete Production ◽  
Quarry Dust ◽  
Constant Percentage

The amount of waste, associated waste disposal costs, and environmental contamination may be minimized by identifying effective recycling approaches. These promising approaches will also lead to the protection of natural resources and economic gains. One example of waste disposal maybe by using it as a filling material or as a pozzolanic material for the production of concrete. In this regard, this study proposes to partially replace cement with aluminum dross and fly ash, and partially replace natural sand with quarry dust. Aluminum dross, cement, sand, and quarry dust were used in a variety of proportions with a constant percentage of fly ash for the design of nine concrete mixtures. Aluminum dross was replaced by 5, 10, 15, and 20% of the cement mass. At first, the optimum replacement of aluminum dross without using quarry dust was determined at a constant percentage of fly ash-15% based on the strength results. Later, by introducing the optimum substitution of aluminum dross with cement and fly ash, the quarry dust was partially replaced at 10, 20, 30, and 40% of river sand to determine the overall optimum mix. The mechanical and durability characteristics of the concrete using the three mixtures were analyzed. It has been observed that the mechanical and durability characteristics of a concrete mixture incorporating a fly ash-15%, aluminum dross-10%, and quarry dust-20% are better than that of standard concrete. Production of concrete using industrial waste can minimize infrastructure construction costs and reduce environmental impacts.

scholarly journals Compression and Split Tensile Characteristics of Concrete Containing Quarry Residues

2019 ◽  
Vol 5 (5) ◽  
pp. 1-5
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Research Facility ◽  
River Sand ◽  
Split Tensile Strength ◽  
Fine Aggregates ◽  
Concrete Production ◽  
The World ◽  
Substitute Material ◽  
Quarry Dust

Waterway sand and pit sand are the most normally utilized fine aggregates for concrete creation in many parts of the world. Huge scale extraction of these materials presents genuine ecological risk in numerous parts of the nation. Aside from the ecological danger, there still exists the issue of intense lack in many regions. In this way, substitute material in place of river sand for concrete production should be considered. The paper means to examine the compressive and split tensile qualities of concrete produced using quarry residue, sand, and a blend of sand and quarry dust. The experimentation is absolutely research facility based. A total of 60 concrete cubes of size 150 mm x 150 mm x 150 mm, and 60 cylinders 150 mm in diameter and 300 mm deep, conforming to M50 grade were casted. All the samples were cured and tested with a steady water/concrete proportion of 0.31. Out of the 60 blocks cast, 20 each were made out of natural river sand, quarry dust and an equivalent blend of sand and quarry dust. It was discovered that the compressive strength and split tensile strength of concrete produced using the blend of quarry residue and sand was higher than the compressive qualities of concrete produced using 100% sand and 100% quarry dust.

scholarly journals THE EFFECT OF QUARRY DUST WITH CEMENT BY-PRODUCTS ON PROPERTIES OF CONCRETE

2018 ◽  
Vol 30 (3) ◽  
Author(s):  
Jaharatul Dini Karen Lee Abdullah ◽  
Nazri Ali ◽  
Roslli Noor Mohamed ◽  
Mohammed Mu’azu Abdullahi
Keyword(s):  
Partial Replacement ◽  
Concrete Durability ◽  
River Sand ◽  
Natural Sand ◽  
Green Concrete ◽  
Granulated Blast Furnace Slag ◽  
Mineral Additions ◽  
Carbon Dioxide Co2 ◽  
The Cost ◽  
Quarry Dust

The numerous demanding application of concrete is not readily met with Ordinary Portland Cement (OPC) alone. To meet up the demand and as well as ensured the green concrete durability, it has becomes necessary to incorporate mineral additions with the best combination of others by-product as replacement to improve the performance without jeopardizing the strength of the concrete. In the construction industry, OPC cement and river sand are used as important building material making it scarce and limited. Whereas, as for the cement is well known as the biggest culprits for emitting carbon dioxide (CO2). Hence, partial replacement of cement becomes a necessity as well as natural sand in concrete by waste material or by-product without compromising the quality of the end product. Partial replacement with Ground Granulated Blast furnace Slag (GGBS), Fly Ash (PFA), Silica Fumes (SILICA) incorporates with 100% of Quarry Dust (QD) as sand replacement. The usage of 100% QD with OPC+PFA+SILICA (Mix 2) produced more durable concrete with good temperature control and better furnishing than with 100% river. In addition to the cost effect benefit, the reduction in depletion of river sand, addressing environment and sustainability issues, it is a valuable contribution in creating a green concrete.

scholarly journals Strength Characteristics of M40 Grade Concrete using Waste PET as Replacement for Sand

2021 ◽  
Vol 18 (3) ◽  
pp. 209-218
Author(s):  
S.O.A. Olawale ◽  
M.A. Kareem ◽  
O.Y. Ojo ◽  
A.U. Adebanjo ◽  
M.O. Thanni
Keyword(s):  
Compressive Strength ◽  
Target Strength ◽  
River Sand ◽  
Split Tensile Strength ◽  
Natural Sand ◽  
Cement Ratio ◽  
Mix Proportion ◽  
Global Trend ◽  
Concrete Production ◽  
Free Environment

The wide variety of industrial and domestic applications of plastic products has fuelled a global trend in their use. The vast amount of plastic items that are discarded after use, on the other hand, pollutes the environment. In light of this, the current study  investigated the use of Polyethylene Terephthalate (PET) as substitute for natural sand in concrete production. Locally sourced river sand was replaced with industrially ground waste PET in proportions of 4 to 20% at a step of 4% by the weight of natural sand whereas other concrete constituents (cement, granite, water-cement ratio and superplasticizer) were kept constant. A Grade M40 concrete with a mix proportion of 1:1:2:0.35 (cement: sand: granite: water-to-cement ratio) was used for all concrete mixes.  Concrete without PET represents the control. Fresh (Slump) and hardened (compressive, split tensile and flexural) properties of the produced concrete were assessed using standard testing methods. The results showed that the slump of concrete decreased by 1.8% and 12.5% with an increase in PET content from 0 to 20%. The 28-day compressive strength of concrete containing PET was lower than the control. However, concrete with 4% PET compared considerably well with control with the compressive strength value exceeding the target strength of 40 N/mm2 while concretes containing PET beyond 4% had compressive strength below the target strength. The split tensile strength of concrete containing 4% PET was higher than that of the control but exhibited lower flexural strength than the control at the age of 28 days. It was concluded that the reuse of PET as a substitute for natural sand as an alternative waste disposal solution for eco-friendly concrete development and attainment of a pollution-free environment is viable.

scholarly journals Utilization of Quarry Dust as a Partial Replacement of Sand in Concrete Making

2021 ◽  
Vol 5 (2) ◽  
pp. 582-591
Author(s):  
C.H. Aginam ◽  
C.M. Nwakaire ◽  
P.D. Onodagu ◽  
N.M. Ezema
Keyword(s):  
Compressive Strength ◽  
Concrete Strength ◽  
Dust Content ◽  
Partial Replacement ◽  
River Sand ◽  
Concrete Mixtures ◽  
A Value ◽  
River Bed ◽  
Concrete Production ◽  
Quarry Dust

The use of crushed quarry dust as a partial replacement of river sand in concrete production was investigated in this study. This is expedient as quarry dust can be available at some locations with insufficient river sand for construction purposes. The use of quarry dust is also in concrete is also a measure necessary for improvement of concrete strength. River sand was replaced with quarry dust for different mix designs of concrete for 0% to 25% replacement levels with 5% intervals. The physical properties of river sand and quarry dust were tested and reported and the workability as well as compressive strengths of the concrete mixtures were also tested. It was observed that the slump values increased with increase in percentage replacement of sand with quarry dust. The compressive strength of cubes at 28 day curing for control mixture of 1:3:6 at 0% partial replacement of river sand with quarry dust was 12.6N/mm2 but compressive strengths of 21.5 N/mm2 and 26.0 N/mm2 were gotten for 1:2:4 concrete and 1:1.5:3 concrete respectively. As the quarry dust content increased to 25%, the 28day compressive strength increased to 13.58 N/mm2 and 21.57 N/mm2 for the 1:3:6 and 1:2:4 mixes respectively. Compressive strength values decreased to a value of 25.72N/mm2 for the 1:1.5:3 concrete mix. The maximum compressive strength values were reached at 20% quarry dust content at the age of 28 days for the three concrete grades investigated. The increase in compressive strength with inclusion of quarry dust was attributed to the higher specific gravity of quarry dust above river sand. The compressive strength of quarry dust concrete continued to increase with age for all the percentages of quarry dust contents. Quarry dust was recommended as a suitable partial replacement for river bed sand in concrete production.

Prediction Based on BP Network for Coal Mine Paste Filling Material Strength

2011 ◽  
Vol 71-78 ◽  
pp. 3087-3090
Author(s):  
Cai Zhi Zhao ◽  
Hua Qiang Zhou
Keyword(s):  
Mathematical Model ◽  
Fly Ash ◽  
Coal Extraction ◽  
Material Strength ◽  
Filling Material ◽  
Affecting Factors ◽  
River Sand ◽  
Bp Network ◽  
Factors Affecting ◽  
Bp Networks

Aiming at the factors affecting the strength of coal paste filling material, the relation between affecting factors and strength of coal paste filling material was revealed on the basis of a lot of experiments in the lab, in which the river sand was used as skeletal material. The tests show that the strength is mainly affected by the slurry density, dosage of fly ash and cementation. However, the establishment of mathematical model between the strength and all affecting factors is very difficult. In order to more accurately forecast the strength of coal paste filling material, the model was established by applying BP networks. The results show that the model is feasible and scientifically justified to forecast the strength of coal paste filling material. The conclusions can provide some references for the practice of none-village-relocation coal extraction in the mine. Introduction

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 Effects of Partial Replacement of Fine Aggregate with Quarry Dust on Concrete Properties

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
S.O Ajamu ◽  
I.A Raheem ◽  
S.B Attah ◽  
J.O Onicha
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Replacement Level ◽  
River Sand ◽  
Split Tensile Strength ◽  
Stone Dust ◽  
Concrete Production ◽  
Quarry Dust

Natural river sand is one of the important constituent materials in concrete production while stone dust is a material obtained from crusher plants which is also sometimes being used either partially or fully in replacement of natural river sand in concrete production. Use of stone dust in concrete not only improves the quality of concrete but also conserve the natural river sand. However, due its scarcity and environmental degradation caused resulting from excessive mining of Natural river sand, there is need to investigate an alternative material of the same quality which can replace river sand in concrete production. In the present study, experiments were carried out to study the gradation of aggregates, workability, compressive strength and split tensile strength of concrete made using quarry dust as replacement of fine aggregate at 0, 25, 50, 75, and 100%. Grade M15 of concrete was produced with ordinary Portland cement (OPC) for referral concrete while M25 of concrete was prepared for compressive strength and split tensile strength concrete. Workability and Compressive strength were determined at different replacement level of fine aggregate and optimum replacement level was determined based on compressive strength. Results showed that by replacing 50% of fine aggregate with quarry dust, concrete of maximum compressive strength can be produced as compared to all other replacement levels. The effect of quarry dust on compressive strength and split tensile strength was investigated and from the overall result obtained, it was observed that the compressive strength and split tensile strength increased significantly for all the curing ages from 0% to 50% replacement level of quarry dust. Maximum value obtained for 28day compressive and tensile strength were 25N/mm2 and 2.3N/mm2 respectively and this occurred at 50% replacement.

scholarly journals Sustainable Materials -Quarry Waste and Waste Plastic as Fine Aggregate for Improving Elastic Properties of Concrete

2020 ◽  
Vol 9 (5) ◽  
pp. 1442-1451
Keyword(s):  
Modulus Of Elasticity ◽  
Full Potential ◽  
Fine Aggregate ◽  
River Sand ◽  
Natural Sand ◽  
Conventional Concrete ◽  
Waste Plastic ◽  
Quarry Fines ◽  
Ldpe Composites ◽  
Quarry Dust

The present paper focuses on the effective utilization of byproduct of stone mines and waste plastic causing harm to the environment. It signifies sustainable utilization of quarry dust to their full potential to meet the needs of the present, while at the same time conserving natural resources and finding ways to minimise the environmental impacts associated both with quarry fines production. Mathematical modeling for interpreting modulus of elasticity of concrete mixes using ordinary river sand and compared with 0, 25%,50%,75%, 100% replacement with quarry dust in combination with waste plastic in fabriform is discussed. The addition of fine quarry dust with ldpe as waste plastic in concrete resulted in improved matrix densification compared to conventional concrete as well as . Matrix densification has been studied qualitatively through petro graphical examination using digital optical microscopy. The structure was evaluated using SEM in quarry dust and ldpe composites. It is observed that the modulus of elasticity values found to be maximum for 50% replacement of natural sand by quarry dust and waste plastic. The effects of quarry dust on the elastic modulus property were found to be consistent with conventional natural sand.

Assessment of Mine Tailing and Quarry Dust as Joint Concrete Aggregates

2019 ◽  
Vol 44 ◽  
pp. 64-74
Author(s):  
Leopold Mbereyaho ◽  
Paul Claudel Kwizera ◽  
Tudor Bigabo Munyampundu ◽  
Abdoul Karim Mutwarasibo
Keyword(s):  
Mine Tailings ◽  
Dual Problem ◽  
Coarse Aggregate ◽  
Partial Replacement ◽  
Normal Concrete ◽  
River Sand ◽  
Mining Sites ◽  
Concrete Aggregates ◽  
Concrete Production ◽  
Quarry Dust

The consumption of natural resources like sand and stones for concrete production has resulted not only in their scarcity but also in environmental degradation associated with their extraction, and air pollution due to the generated quarry dust as result of the rock crushing. Also, with increase of mining sites in Rwanda, the amount of mine tailings has extremely increased, and their dumping is becoming a big challenge. The purpose of this study was to search for an engineering solution to the above dual problem, analyzing the performance of both mine-tailings and quarry dust as potential replacements for ordinary aggregates in concrete. The methodology consisted of evaluating the properties of the two materials, and then the analysis of strength characteristics for the new concrete manufactured using the two new aggregates. Concrete preparation was done by keeping constant the mine tailings portion as coarse aggregate, while partially replacing river sand by quarry dust at different fractions as 0%, 10%, 30% and 50%. It was established that, comparatively to normal concrete at 28 days, the compressive and tensile strengths of concrete with mine-tailings and river sand increased from 27MPA to 37.5 MPA, and from 1.9 to 3.1 MPA respectively on one hand, and on the other hand the compressive and tensile strengths decreased with partial replacement of river sand by quarry dust from 37.5 to 27.9MPA and from 3.1 to 2.3 MPA at replacements from 0% to 50% respectively. It was concluded that mine tailings and quarry dusty can be used together as concrete new aggregates in replacement of ordinary aggregates, with a due attention to concrete workability and its area of application.

Sidoarjo Mud-Based Lightweight Mortar Using Foaming Agent and Aluminum Powder

2015 ◽  
Vol 754-755 ◽  
pp. 284-289 ◽  
Author(s):  
Triwulan ◽  
Januarti Jaya Ekaputri ◽  
Jatmiko Andik ◽  
Dean Pahlevi Boby
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Portland Cement ◽  
Aluminum Powder ◽  
Lightweight Concrete ◽  
Natural Sand ◽  
Foaming Agent ◽  
High Rise ◽  
Pozzolanic Material ◽  
Lightweight Mortar

Lightweight concrete is generally used particularly at high-rise buildings in order to reduce the risk of earthquake. It is common that lightweight concrete is made with less Portland Cement associated with pozzolanic material as a binder. In this paper, calcined-Sidoarjo mud was identified as pozzolanic material as cement substitution. The mud contains SiO2, Al2O3 and Fe2O3 and to be expected it has properties as a potential pozzolanic material. Paste and mortar as specimens made from mixtures of calcined-Sidoarjo mud, fly ash, lime, portland cement and natural sand. The specimens were then mixed with a commercial chemical foaming agent and Aluminum powder as aerating agents. The results showed that test paste specimens using chemical foam showed higher compressive strength and density than those of using aluminum powder. Lightweight paste made with chemical foam has compressive strength of 10.7 Mpa with density of 1133kg/m3. Moreover, the specimens of lightweight mortar had the compressive strength of 4.8 MPa, and the density of 1154.7kg/m3. Lightweight paste specimens using aluminum powder had a compressive strength of 2.8 Mpa with density of 1013kg/m3, while lightweight mortar specimens showed compressive strength of 2.4 MPa, and the density was 966kg/m3.

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