scholarly journals A Methodology of Waste Material Utilization in Concrete Mix for Rigid Pavement Construction

2021 ◽  
Vol 9 (9) ◽  
pp. 2124-2128
Author(s):  
Ramkrishna Birla
Keyword(s):  
Natural Resources ◽  
Coarse Aggregate ◽  
Waste Material ◽  
Ecological Problem ◽  
Fine Aggregate ◽  
Rigid Pavement ◽  
Concrete Production ◽  
Concrete Mix ◽  
Pavement Construction

Abstract: The demand of concrete for rigid pavement construction is constantly growing. Thus, the extraction of fine aggregate, coarse aggregate and cement from natural resources also increases. The more extraction of these virgin materials from the natural resources enhances the cost of these materials progressively. Therefore, it has severely affected the financial viability of the government for rigid pavement construction. Further, due to urbanization and industrialization the amount of waste material is also increased. This state creating an ecological problem that must be addressed. Therefore, there is an urgent need to preserve natural resources by using recycled or discarded wastes as a construction material. Hence the main objective of this work is to study of utilization of waste material in concrete production for rigid pavement construction. A four stages methodology is proposed in this study. these stages are (I) Determination of quantity of various materials for development of concrete mix (II) Identification of significant waste materials and their properties (III) Prepare concrete mix using replacement of cement, sand, and aggregate by waste material and (IV) Comparative evaluation of different properties of developed concrete mix. This study to check the suitability of waste foundry sand (WFS), granulated blast furnace slag (GBFS), and waste rubber tyre (WRT) as a replacement of fine aggregate, cement, and coarse aggregate respectively. The analysis and results indicated that WFS, GBFS, and WRT can be used as a replacement of fine aggregate, cement, and coarse aggregate respectively. Thus, it is expected that the proposed methodology will be useful for researcher to determination of suitability of different alternative materials for replacement of cement, fine aggregate, and coarse aggregate Keywords: Concrete mix, Waste Material, GGBS, WFS, WRT etc.

Effect of Substitution of Crushed Waste Glass as Partial Replacement for Natural Fine and Coarse Aggregate in Concrete

2016 ◽  
Vol 866 ◽  
pp. 58-62 ◽  
Author(s):  
Oluwarotimi M. Olofinnade ◽  
Julius M. Ndambuki ◽  
Anthony N. Ede ◽  
David O. Olukanni
Keyword(s):  
Coarse Aggregate ◽  
Waste Glass ◽  
Glass Content ◽  
Partial Replacement ◽  
Hardened Concrete ◽  
Fine Aggregate ◽  
Cement Ratio ◽  
Water Cement Ratio ◽  
Concrete Production ◽  
Concrete Mix

Reusing of waste glass in concrete production is among the attractive option of achieving waste reduction and preserving the natural resources from further depletion thereby protecting the environment and achieving sustainability. This present study examines the possible reuse of waste glass crushed into fine and coarse aggregate sizes as partial substitute for natural fine and coarse aggregate in concrete. The variables in this study is both the fine and coarse aggregate while the cement and water-cement ratio were held constant. The crushed glass was varied from 0 – 100% in steps of 25% by weight to replace the both the natural fine and coarse aggregate in the same concrete mix. Concrete mixes were prepared using a mix proportion of 1:2:4 (cement: fine aggregate: coarse aggregate) at water-cement ratio of 0.5 targeting a design strength of 20 MPa. Tests were carried out on total number of 90 concrete cube specimens of size 150 x 150 x150 mm and 90concrete cylinder specimens of dimension 100 mm diameter by 200 mm height after 3, 7, 14, 28, 42 and 90 days of curing. Test results indicated that the compressive and split tensile strength of the hardened concrete decreases with increasing waste glass content compared with the control. However, concrete mix made with 25% waste glass content compared significantly well with the control and can be suitably adopted for production of light weight concrete.

scholarly journals Lightweight SFRC Benefitting from a Pre-Soaking and Internal Curing Process

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4152 ◽  
Author(s):  
Marie Hornakova ◽  
Jacek Katzer ◽  
Janusz Kobaka ◽  
Petr Konecny
Keyword(s):  
Strength Class ◽  
Coarse Aggregate ◽  
Steel Fiber ◽  
Fiber Reinforced Concrete ◽  
Internal Curing ◽  
Fine Aggregate ◽  
Coated Steel ◽  
Curing Process ◽  
Model Code ◽  
Concrete Mix

The presented research program is focused on the design of a structural lightweight fiber-reinforced concrete harnessing an internal curing process. Pre-soaked waste red ceramic fine aggregate and pre-soaked artificial clay expanded coarse aggregate were utilized for the creation of the mix. Copper-coated steel fiber was added to the mix by volume in amounts of 0.0%, 0.5%, 1.0%, and 1.5%. Test specimens in forms of cubes, cylinders, and beams were tested to specify the concrete characteristics. Such properties as consistency, compressive strength, splitting tensile strength, static and dynamic modulus of elasticity, flexural characteristics, and shear strength were of special interest. The achieved concrete can be classified as LC12/13. A strength class, according to fib Model Code, was also assigned to the concretes in question. The proposed method of preparation of concrete mix using only pre-soaked aggregate (with no extra water) proved to be feasible.

scholarly journals Influence of Ash and Coconut Shell Against Compressive Strength and Permeability Characteristics of Pervious Concrete

2021 ◽  
Vol 12 (3) ◽  
pp. 4129-4138
Author(s):  
Suwendy Arifin Et.al
Keyword(s):  
Compressive Strength ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Waste Material ◽  
Pervious Concrete ◽  
Coconut Shell ◽  
Fine Aggregate ◽  
Permeability Characteristics ◽  
Fine Aggregates ◽  
Reduced Density

Pervious concrete or non-fine concrete is a simple form of lightweight concrete made by eliminating the use of fine aggregates. As a result of not using fine aggregate in pervious concrete, then created a cavity filled with air and water can be passed. This cavity resulted in reduced density of the concrete as well as the reduced amount of area that needs to be covered by cement paste, thereby reducing the compressive strength. To increase the compressive strength of pervious concrete, in this study will utilize waste material. The waste material is the cocnut shell ash and coconut shell to strengthen the coarse aggregate bonds, so it is expected to increase the compressive strength along with the increase in permeability. Thus, in this study will replace part of the coarse aggregate with coconut shell with percentage 0%, 2,5%, 5%, 7,5%, 10% and partially replace cement with coconut shell ash with percentage 0%, 2,5%, 5%, 7,5%

scholarly journals Experimental Study on Light Weight Concrete Using Coconut Shell and Fly Ash

2022 ◽  
Vol 10 (1) ◽  
pp. 752-758
Author(s):  
Barkha Verma
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Fresh Concrete ◽  
Industrial Wastes ◽  
Coconut Shell ◽  
Fine Aggregate ◽  
Concrete Production ◽  
Coconut Shells

Abstract: Aggregates provide volume at low cost, comprising 66% to 78% of the concrete. With increasing concern over the excessive exploitation of natural and quality aggregates, the aggregate produced from industrial wastes and agricultural wastes is the viable new source for building material. This study was carried out to determine the possibilities of using coconut shells as aggregate in concrete. Utilizing coconut shells as aggregate in concrete production not only solves the problem of disposing of this solid waste but also helps conserve natural resources. In this paper, the physical properties of crushed coconut shell aggregate were presented. The fresh concrete properties such as the density and slump and 28 days compressive strength of lightweight concrete made with coconut shell as coarse aggregate were also presented. The findings indicate that water absorption of the coconut shell aggregate was high about 24% but crushing value and impact value were comparable to that of other lightweight aggregates. The average fresh concrete density and 28days cube compressive strength of the concrete using coconut shell aggregate 1975kg/m3 and 19.1 N/mm2 respectively. It is concluded that crushed coconut shell is suitable when it is used as a substitute for conventional aggregates in lightweight concrete production. Keywords: Coarse Aggregate, Cement, Concrete, Fly Ash, Coconut shell Aggregate, Water, Compressive Strength, Workability, Fine Aggregate.

Influence and Possibility of Using Limestone Dust Replacement of Sand for Sustainability in Concrete Production

2021 ◽  
Author(s):  
Nuttawut Intaboot ◽  
Kriangkrai Chartboot
Keyword(s):  
Compressive Strength ◽  
Local Governments ◽  
Coarse Aggregate ◽  
Cost Effective ◽  
Fine Aggregate ◽  
Concrete Mix Design ◽  
Concrete Production ◽  
Compressive Strength Test ◽  
Limestone Dust ◽  
Porous Microstructures

This paper aimed to assess the potential of using limestone dust to replace sand at levels of 0, 20, 40, 60, 80 and 100% by weight. Concrete mix design for cement : fine aggregate : coarse aggregate was 1: 2 : 4 and 0.40, 0.50, 0.60 water-to-cement ratios were used. The study started by testing the basic properties of the material. The compressive strength test was done with curing for 7, 14, 21 and 28 days and modulus of elasticity of concrete at 28 days, after which the microstructural properties of concrete modified with limestone dust were investigated. The study found that the concrete had better workability when increasing the limestone dust content. The incorporation of 40% limestone dust at 0.50 water-to-cement ratios was found to improve the compressive strength of the concrete and resulted in the maximum compressive strength. However, high levels of replacement lead to porous microstructures. Moreover, the use of limestone dust in concrete production tends to be more cost-effective. Therefore, the results of this research seemingly provide confirmation and support for the utilization of these waste materials by reducing the use of natural resources. Further, it is a goal of local governments to help promote the value of limestone dust for future use.

scholarly journals Evaluation of using crushed brick as coarse aggregate in concrete layer within rigid highway pavement

2018 ◽  
Vol 162 ◽  
pp. 01045
Author(s):  
Ali Alwash ◽  
Fatimah Al-Khafaji
Keyword(s):  
Coarse Aggregate ◽  
Partial Replacement ◽  
Experimental Investigations ◽  
Construction Technique ◽  
Rigid Pavement ◽  
Clay Bricks ◽  
Concrete Layer ◽  
Concrete Mix ◽  
Crushed Brick ◽  
Highway Pavement

Most of the present studies related to the field of highway pavement construction technique tend to make use of the local available materials as substitutes for the imported and necessary materials for some of the practical application. For this reason this research aims at looking for the prospect of used locally available aggregate such as crushed clay bricks for the aim of producing proper concrete with suitable thermal and mechanical properties. Experimental investigations have been carried out to asses the effect of partial replacement of coarse aggregate by free manually crushed Brick with percentages (10, 20, 30 and 40)% of virgin coarse aggregate in concrete mix for highway rigid pavement. While the percentage (0)% replacement represent reference mix. Mix proportion based on the target of compressive strength for all replacement percentage of (33) MPa at (28) days to achieve AASHTO requirement for highway concrete rigid pavement .The results of flexural strength, modulus of elasticity, density and thermal conductivity refers to better performance (less thickness of concrete layer with large spacing between contraction or expansion joints and less stresses due to warping induced concrete layer) for concrete mix with 20% crushed brick as replacement of coarse aggregate.

scholarly journals Deflection Behaviour of RC Beams using Reshaped Waste Tyre Rubber as Partial Replacement of Coarse Aggregate

2019 ◽  
Vol 8 (2) ◽  
pp. 4392-4395
Keyword(s):  
Natural Resources ◽  
Coarse Aggregate ◽  
Mechanical Energy ◽  
Research Work ◽  
Partial Replacement ◽  
Portland Cement Concrete ◽  
Conventional Concrete ◽  
Concrete Production ◽  
The World ◽  
Waste Tyre

The increasing demand of natural resources for the concrete production has impacted the surroundings and the concern to protect these natural resources is increasing. Lately, handling and management of scrap is the primary issue faced by the countries worldwide. The waste problem is the most important problems facing the world as a source of the environmental pollution. One of the censorious wastes to be control in today is ‘waste tyre’ because; recent development in transportation has create big number of vehicles, which produce huge quantities of used tyres. Disposing such waste tyres is a critical waste management concern around the world at the moment. Various research work had been conducted in the past which had results that showed reduction in the mechanical energy of the concrete. The motive of this study is to use the reshaped waste tyre rubber as partial alteration of coarse aggregate in the concrete and to examine the outcome of providing an mooring hole of10mm in dia on the surface of the rubber gravel which makes the cement plaster to form a cylindrical mooring between the gravel and the concrete as well work as are bar to the rubber gravel thereby, increase withstanding power to failure under load which simultaneously increase the strength. The partial replacements of coarse aggregates are done at 0%, 5%, 10%, 15% and 20% by quantity of coarse gravel. The resulting concrete beams are tested for the physical characteristics of concrete. The Comparison of flexural response of beams are made with ordinary Portland cement concrete (OPCC)and Reshaped Waste Tyre Rubber Aggregate Concrete (RWTRAC)for various compositions of Reshaped Waste Tyre Rubber Aggregate replacement to coarse aggregate. Consequently the tests on RWTRAC beams of 10 % rubber aggregate replacement are conducted and results indicated that all the beams are failed in pure bending region and gives deflection nearly same as the conventional beam with the influence of the ultimate moment. Based on the observations during testing, the beams failed in pure flexural compression failure mode. Ductility factor of RWTRAC beam also showed enhanced performance when compared with the performance of conventional concrete. After testing it is inferred that till 10% of RWTRA replacement, the compressive and flexural strength of concrete is nearly same as the conventional concrete, but from 10 to 20% the strengths are abruptly fallen.

scholarly journals Experimental Study on Strength of Concrete Partially Replacing Chiton shell as Fine Aggregate

2018 ◽  
Vol 7 (3.34) ◽  
pp. 406
Author(s):  
J Madhan Kumar ◽  
R Kalaiselvan ◽  
Raghul Raj
Keyword(s):  
Experimental Study ◽  
Tensile Strength ◽  
Natural Resources ◽  
Coarse Aggregate ◽  
Marine Organism ◽  
Raw Material ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Split Tensile Strength ◽  
The World

The most widely used material in the world is concrete, consequently there is a large requirement for raw material of concrete such as Fine Aggregate, Coarse Aggregate and cement. the huge extraction of the aggregate for manufacturing of concrete as serious effect on the environment due to depletion of natural resources and pollution. This affects the eco system to great extent. Hence the project deals with finding replacement for the existing raw material used in concrete by replacing the fine aggregate from river which is largely used in construction by chiton shell. Sea shell is the corpus of the marine organism. The sea shell has been grinded to 4.75mm and then replaced in the concrete. M20 mix was used and cubic specimen were casted for 5 different percentage of partial replacement as 0%, 5%, 10 %, 20%, and 25 %. All the specimens are tested for 7 & 28 days compressive, flexural and split tensile strength. it has been noted that the highest strength is obtained for 25% replacement of chiton shell. it was also observed that  addition of sea shell power in concrete reduced workability hence superplasticizer were added to improve the consistency. 

Sign in / Sign up

Export Citation Format

Share Document