Strength and microstructure of ecoconcrete produced

Strength and microstructure of eco-concrete produced using ...

Strength and microstructure of eco-concrete produced using waste glass as partial and complete replacement for sand Oluwarotimi M. Olofinnade 1*, Anthony N. Ede1, Julius M. Ndambuki2, Ben U. Ngene , Isaac I. Akinwumi 1and Olatokunbo Ofuyatan Abstract: The sustainable benefits of waste glass usage in concrete include the

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Strength and microstructure of eco-concrete produced using ...

Cogent Engineering (2018-01-01) . Strength and microstructure of eco-concrete produced using waste glass as partial and complete replacement for sand

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Strength and microstructure of eco-concrete produced using ...

Compressive and tensile strength tests were performed on 60 specimens after 3, 7, 28 and 90 days of curing. The concrete microstructure was examined using the scanning electron microscope (SEM). Results showed that workability and the mechanical strength of the concrete produced decreased with increasing waste glass content.

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Performance of eco-concrete made from waste-derived eco ...

Mar 20, 2021  Physically, the carbonation-densified microstructure and reduced permeability of eco-concrete – features confirmed by surface resistivity results (Section 3.3.3) – limited overall water ingress and the number of critically-sized pore sites prone to frost fatigue. Chemically, the absence of calcium-hydroxide in the binding matrix of eco ...

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‪Julius Ndambuki‬ - ‪Google Scholar‬

Strength and microstructure of eco-concrete produced using waste glass as partial and complete replacement for sand OM Olofinnade, AN Ede, JM Ndambuki, BU Ngene, II Akinwumi, ... Cogent Engineering 5 (1), 1483860 , 2018

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‪Olatokunbo Ofuyatan‬ - ‪Google Scholar‬

Strength and microstructure of eco-concrete produced using waste glass as partial and complete replacement for sand OM Olofinnade, AN Ede, JM Ndambuki, BU Ngene, II Akinwumi, ... Cogent Engineering 5 (1), 1483860 , 2018

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Strength improvement of expansive soil by utilizing waste ...

Dec 01, 2020  Strength and microstructure of eco-concrete produced using waste glass as partial and complete replacement for sand AU - Olofinnade, Oluwarotimi M Cogent Eng. , 5 ( 2018 ) , pp. 1 - 19 View Record in Scopus Google Scholar

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Workability, strength, and microstructure of high strength ...

Jul 01, 2021  This study examines the workability, strength, and microstructure of high strength eco-concrete incorporating recycled clay brick aggregate and calcined clay. The study adopted a design mixes proportioning of 1:1:2 by weight at a constant water/binder ratio of 0.25.

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‪Julius Ndambuki‬ - ‪Google Scholar‬

Strength and microstructure of eco-concrete produced using waste glass as partial and complete replacement for sand OM Olofinnade, AN Ede, JM Ndambuki, BU Ngene, II Akinwumi, ... Cogent Engineering 5 (1), 1483860 , 2018

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Mechanical Performances of Concrete Produced with Desert ...

Jul 30, 2020  XRD and SEM experiments were also conducted to study the microstructure of concrete produced with desert sand after elevated temperature. Experimental results showed that the cubic compressive strength of concrete produced with desert sand

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Cogent Engineering Journal Impact IF 2020-2021 Analysis ...

Strength and microstructure of eco-concrete produced using waste glass as partial and complete replacement for sand Eileen Harkin-Jones Eileen Harkin-Jones Seismic qualification and time history shake-table testing of high voltage surge arrester under seismic qualification level moderate

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Applied Sciences Special Issue : Advances in High ...

On the other hand, the flexural strength of the 70% GGBS mixtures increased as the nano-silica increased. Nano-silica addition improved the microstructure and the interface structure of the mixtures due to its high pozzolanic activity and the nano-filler effect, which is confirmed by RCPT results and SEM images. Full article

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Properties of Recycled-Cement Produced from Waste Concrete ...

This research aims to find a new way of “turning trash into treasure” for the waste concrete. In the research, waste concrete was first ground, then, after analyzing its mineral composition, combined with some other ingredients according to the modulus of the cement clinker to become raw materials of cement. Mixed raw materials were made to be a thin cake, and then sent into high ...

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Interfacial strength and microstructure of AlN/Cu joints ...

May 15, 2021  Bond strength and interfacial microstructure of AlN/Cu joints. Τhe average values of the shear strength of the AlN/Cu joints produced after brazing for 10 min at various temperatures are presented in Fig. 5. The shear strength increases when the temperature rises and a maximum of 48.5 MPa was recorded for the joint produced at 850 °C.

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(PDF) Reuse of pulverized fired clay brick wastes as ...

Strength and microstructure of eco-concrete produced using waste glass as partial and complete replacement for sand By Oluwarotimi M Olofinnade Innovative and sustainable green concrete-A potential review on utilization of agricultural waste Innovative and sustainable green concrete-A potential review on utilization of agricultural waste

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Geopolymer Concrete - The Eco Friendly Alternate to Concrete

Geopolymer concrete (GPC) is an eco friendly product which uses industrial waste by-products such as fly ash (waste from thermal power plants) and ground granulated Blast Furnace Slag (waste from Iron production) as complete replacement for cement in concrete. As a result of this geopolymer concrete reduces CO 2 emissions by 80%.

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Comparison of Microstructure and Mechanical Properties of ...

The second-generation aluminum-magnesium-scandium (Al-Mg-Sc) alloy, which is often referred to as Scalmalloy ®, has been developed as a high-strength aluminum alloy for selective laser melting (SLM).The high-cooling rates of melt pools during SLM establishes the thermodynamic conditions for a fine-grained crack-free aluminum structure saturated with fine precipitates of the ceramic phase ...

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Waste glass in the production of cement and concrete – A ...

Cement and glass industries are facing a lot of challenges due to the high greenhouse gases emissions, the intensive use of energy and the intensive use of the earth’s natural resources. The current situation of discarding waste glass to landfills is also not offering an environmental friendly management for the waste glass, due to the nonbiodegradable form of the waste glass.

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Performance of the lightweight concrete with available ...

were produced using LECA with different dosage of nano- silica (0.75%, 1.5%, and 2%). Strength and durability of all mixtures were studied, also the microstructure of concrete mixes was observed. The test results demonstrated that using nano-silica im-proved the compressive and tensile strength.

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Strength and microstructure of eco-concrete produced using ...

Compressive and tensile strength tests were performed on 60 specimens after 3, 7, 28 and 90 days of curing. The concrete microstructure was examined using the scanning electron microscope (SEM). Results showed that workability and the mechanical strength of the concrete produced decreased with increasing waste glass content.

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Cogent Engineering: Vol 5, No 1 - tandfonline

Strength and microstructure of eco-concrete produced using waste glass as partial and complete replacement for sand Oluwarotimi M. Olofinnade , Anthony N. Ede , Julius M. Ndambuki , Ben U. Ngene , Isaac I. Akinwumi Olatokunbo Ofuyatan Sanjay Kumar Shukla (Reviewing editor)

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Oluwarotimi M Olofinnade Covenant University Canaanland ...

Strength and microstructure of eco-concrete produced using waste glass as partial and complete replacement for sand more. by ... sizes (12.5mm, 19mm and 30mm) together with a mixed-size aggregate were utilized for the research. The concrete produced were tested for compressive strength and compared with test results from sites in Lagos Nigeria. ...

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(PDF) Reuse of pulverized fired clay brick wastes as ...

Strength and microstructure of eco-concrete produced using waste glass as partial and complete replacement for sand By Oluwarotimi M Olofinnade Innovative and sustainable green concrete-A potential review on utilization of agricultural waste Innovative and sustainable green concrete-A potential review on utilization of agricultural waste

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Effect of Geopolymer Aggregate on Strength and ...

Nov 01, 2018  The analysis has included compressive and tensile strengths of concretes made with the manufactured geopolymer coarse aggregate and a comparative natural crushed coarse aggregate. In addition, the microstructure and pore structure development of both concretes at the interfacial transition zone (ITZ) and bulk cement matrix were studied though ...

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Cogent Engineering Journal Impact IF 2020-2021 Analysis ...

Strength and microstructure of eco-concrete produced using waste glass as partial and complete replacement for sand Eileen Harkin-Jones Eileen Harkin-Jones Seismic qualification and time history shake-table testing of high voltage surge arrester under seismic qualification level moderate

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Properties and microstructure of CO2 activated binder ...

May 03, 2021  A CO 2 activated binder is developed by recycling phosphorous slag (PHS).. The compressive strength of carbonated PHS specimen increased up to 171.0 MPa after carbonation. • 1 t PHS can sequestrate up to 110.9 kg CO 2.. The densified microstructure improves the compressive strength of PHS specimens.

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Performance of the lightweight concrete with available ...

were produced using LECA with different dosage of nano- silica (0.75%, 1.5%, and 2%). Strength and durability of all mixtures were studied, also the microstructure of concrete mixes was observed. The test results demonstrated that using nano-silica im-proved the compressive and tensile strength.

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Portland Clinker-Fly Ash Cements – Relation between ...

Apr 22, 2021  Keywords: clinker, compressive strength, fly ash, microstructure, sulphate. Date: 4/22/2021. Abstract: Portland cements were made by mixing 4 different clinkers with 2 gypsum levels and 0-5% limestone powder. The compressive strength after 28 days of curing varied from 40 (5802) to 70 MPa (9718 psi) for mortar with equal w/c.

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American Scientific Publishers

Strength Prediction Formula of Eco-Concrete Based on Cementitious Paste Strength and Aggregate Size Junshi Liu, Liang Wang, and Hongzhu Quan Sci. Adv. Mater. 13, 88–97 (2021) [Full Text - PDF] [Purchase Article]

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Waste glass in the production of cement and concrete – A ...

Cement and glass industries are facing a lot of challenges due to the high greenhouse gases emissions, the intensive use of energy and the intensive use of the earth’s natural resources. The current situation of discarding waste glass to landfills is also not offering an environmental friendly management for the waste glass, due to the nonbiodegradable form of the waste glass.

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Microstructure - Wikipedia

Microstructure is the very small scale structure of a material, defined as the structure of a prepared surface of material as revealed by an optical microscope above 25× magnification. The microstructure of a material (such as metals, polymers, ceramics or composites) can strongly influence physical properties such as strength, toughness, ductility, hardness, corrosion resistance, high/low ...

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Use of waste glass as sand in mortar: Part I – Fresh ...

In this study, mortar made with waste glass as fine aggregates was investigated for its suitability for construction use. A reference mortar mixture was proportioned according to ASTM C 109 and the fine aggregates were replaced by waste glass particles by 0%, 25%, 50%, 75% and 100%, by mass, to study its effect on the properties of mortar. For each mixture, four types of glass sand, namely ...

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Eco-concrete with incorporation of blast furnace slag as ...

This characterization was made by microstructure analysis and determination of the mechanical properties, like compressive, tensile and bending strengths. The results analyses made possible to conclude several positive points:-Microstructure modifications at the cement matrices level and at the interface zones were observed.

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