Strength development and acid resistance of geopolymer based on waste clay brick powder and phosphorous slag

2019 ◽  
Vol 20 (5) ◽  
pp. 1596-1606 ◽  
Author(s):  
Mostafa Vafaei ◽  
Ali Allahverdi
Keyword(s):  
Acid Resistance ◽  
Strength Development ◽  
Clay Brick ◽  
Brick Powder ◽  
Phosphorous Slag

Medium of Curing and the Influence on Concrete Made with Magnetized Water and Clay Brick Powder

2020 ◽  
Vol 46 (3) ◽  
pp. 431-441
Author(s):  
Ngene Ben ◽  
Bamigboye Gideon ◽  
Olajide Olayinka
Keyword(s):  
Fresh Concrete ◽  
Partial Replacement ◽  
Strength Development ◽  
Clay Brick ◽  
Concrete Members ◽  
Design Life ◽  
Magnetized Water ◽  
Brick Powder ◽  
Good Workability ◽  
Mixing Water

This study examined the effect of curing medium on the strength characteristics of concrete made with magnetic field treated water (MFTW) and clay brick powder (CBP) in partial replacement. Clay brick powder as part replacement of cement at 10, 20, 30 and 40% and MFTW was used to prepare concrete cubes which was cured for 7, 14, 28 and 56 days. Three curing environments used were seawater, acidic water (HCL) and magnetized water. It was observed that the slump test on fresh concrete indicates good workability for MFTW and higher compressive strength than others cured in seawater and HCL condition. Concrete made with 10% CBP using magnetized water and cured in seawater have the highest strength at 56 days. The implication is that construction of bridges and other marine structures may consider the use of MFTW as mixing water to ensure strength development and enhance design life of concrete members.

scholarly journals Effect of Waste Clay Brick Powder on Physical and Mechanical Properties of Cement Paste

2021 ◽  
Vol 15 (1) ◽  
pp. 370-380
Author(s):  
David Sinkhonde ◽  
Richard Ocharo Onchiri ◽  
Walter Odhiambo Oyawa ◽  
John Nyiro Mwero
Keyword(s):  
Compressive Strength ◽  
Cement Paste ◽  
Setting Time ◽  
Partial Replacement ◽  
Clay Brick ◽  
X Ray ◽  
Cement Replacement ◽  
Clay Bricks ◽  
Brick Powder ◽  
Scanning Electron

Background: Investigations on the use of waste clay brick powder in concrete have been extensively conducted, but the analysis of waste clay brick powder effects on cement paste is limited. Materials and Methods: This paper discusses the effects of waste clay brick powder on cement paste. Fragmented clay bricks were grounded in the laboratory using a ball mill and incorporated into cementitious mixes as partial replacement of Ordinary Portland Cement. Workability, consistency, setting time, density and compressive strength properties of paste mixes were investigated to better understand the impact of waste clay brick powder on the cementitious paste. Four cement replacement levels of 2.5%, 5%, 7.5% and 10% were evaluated in comparison with the control paste. The chemical and mineral compositions were evaluated using X-Ray Fluorescence and X-Ray Diffractometer, respectively. The morphology of cement and waste clay brick powder was examined using a scanning electron microscope. Results: The investigation of workability exhibited a reduction of slump attributed to the significant addition of waste clay brick powder into the cementitious mixes, and it was concluded that waste clay brick powder did not significantly influence the density of the mixes. In comparison with the control paste, increased values of consistency and setting time of cement paste containing waste clay brick powder confirmed the information available in the literature. Conclusion: Although waste clay brick powder decreased the compressive strength of cement paste, 5% partial cement replacement with waste clay brick powder was established as an optimum percentage for specimens containing waste clay brick powder following curing periods of 7 and 28 days. Findings of chemical composition, mineral composition and scanning electron microscopy of waste clay brick powder demonstrated that when finely ground, fragmented clay bricks can be used in concrete as a pozzolanic material.

scholarly journals Influence Of Volcanic Scoria On Mechanical Strength, Chemical Resistance And Drying Shrinkage Of Mortars

2014 ◽  
Vol 61 (3) ◽  
pp. 143-150 ◽  
Author(s):  
A. Al-Swaidani ◽  
S. Aliyan ◽  
N. Adarnaly ◽  
B. Hanna ◽  
E. Dyab
Keyword(s):  
Mechanical Strength ◽  
Sulphuric Acid ◽  
Chemical Resistance ◽  
Control Sample ◽  
Acid Resistance ◽  
Drying Shrinkage ◽  
Strength Development ◽  
Acid Solutions ◽  
Test Results ◽  
Blended Cements

Abstract In the study, three types of cement have been prepared; one CEM I type (the control sample) and two blended cements: CEM II/A-P and CEM II/B-P (EN 197-1), each of them with three replacement levels of volcanic scoria: (10 %, 15 %, 20 % wt.) and (25 %, 30 %, 35 % wt.), respectively. Strength development of mortars has been investigated at 2, 7, 28 and 90 days curing. Evaluation of chemical resistance of mortars containing scoria-based cements has been investigated through exposure to 5 % sulphate and 5 % sulphuric acid solutions in accordance with ASTM C1012 & ASTM 267, respectively. Drying shrinkage has been evaluated in accordance with ASTM C596. Test results showed that at early ages, the mortars containing CEM II/B-P binders had strengths much lower than that of the control mortar. However, at 90 days curing, the strengths were comparable to the control mortar. In addition, the increase of scoria significantly improved the sulphate resistance of mortars. Further, an increase in scoria addition improved the sulphuric acid resistance of mortar, especially at the early days of exposure. The results of drying shrinkage revealed that the CEM II/B-P mortar bars exhibited a greater contraction when compared to the control mortar, especially at early ages. However, drying shrinkage of mortars was not influenced much at longer times.

scholarly journals Reuse of Clay Brick Waste in Mortar and Concrete

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Lihua Zhu ◽  
Zengmei Zhu
Keyword(s):  
Solid Waste ◽  
Coarse Aggregate ◽  
Ecological Environment ◽  
Clay Brick ◽  
Aggregate Concrete ◽  
Strength Concrete ◽  
Cement Replacement ◽  
Clay Bricks ◽  
Brick Powder ◽  
Disposal Problem

The application of recycled clay brick can not only solve the disposal problem of demolished solid waste but also reduce ecological environment damage caused by the excessive development of resources. Clay brick powder (CBP) exhibits pozzolanic activity and can be used as cement replacement. Recycled clay brick aggregate (RBA) can be used to substitute natural coarse aggregate. Recycled clay brick aggregate concrete (RBAC) can attain suitable strength and be used in the production of medium- and low-strength concrete. Clay brick waste as potential partial cement and aggregate replacement material is reviewed herein. Performances in terms of mechanical and durability-related properties of mortar and concrete are discussed. Understanding the properties of clay bricks is crucial to further research and applications.

REUSE OF GLASS AND CLAY BRICK WASTES AS SUBSTITUTE FOR NATURAL AGGREGATE IN GREEN CONCRETE

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Oluwarotimi Olofinnade ◽  
Anthony Ede ◽  
Julius Ndambuki ◽  
Ayanfe Opeyemi
Keyword(s):  
Waste Glass ◽  
Clay Brick ◽  
Green Concrete ◽  
Clay Bricks ◽  
Brick Powder ◽  
Glass Aggregate ◽  
Natural Aggregates ◽  
Glass Wastes ◽  
Powder Content ◽  
Curing Age

Utilization of recycled waste materials in making concrete is identified as a sustainable means of managing wastes, thereby reducing the energy consumption, preserving the environment and conserving of natural resources from depletion. Researchers referred to this type of concrete as "green" concrete. This study examines the possible reusing of crushed waste glass as partial and complete substitute for natural aggregates in production of moderate strength green concrete with the addition of ground clay brick as admixture. The clay bricks were obtained as generated wastes from the ceramic and brick producing factory, while the glass wastes were sourced from dump sites and waste collection points within Ota, Nigeria. The waste glass varied from 25%-100% in steps of 25%, and the ground clay brick was added in 10%, 15% and 20% by mass of Portland cement into the concrete mixes. Tests, which include workability and characteristics strength were carried out on the concrete specimens. Microstructural examination was performed on selected concrete specimens. Results indicate reduction in workability with increased waste glass and clay brick powder content. Moreover, the characteristic compressive strength of the concrete specimens increased with curing age, however, concrete mixes containing 10% clay brick powder and 25% waste glass aggregate showed significant improvement in strength at curing age of 28 days than the control concrete.

Mix Proportion and Mechanical Properties of Recycled PET-Brick Powder Mixture

2014 ◽  
Vol 919-921 ◽  
pp. 1990-1993
Author(s):  
Fan Bo Meng ◽  
Yi Zhang Hu ◽  
Hong Ya Yue
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Water Absorption ◽  
Powder Mixture ◽  
Curing Temperature ◽  
Clay Brick ◽  
Recycled Pet ◽  
Research Results ◽  
Mix Proportion ◽  
Brick Powder

This research determined the proper gradation of clay brick powder, PET to clay brick powder ratio, and curing temperature. Density, compressive, and tensile strength of the PET-Brick Powder Mixture were also studied. The research results indicate that the mixture had lower density and water absorption. The strength increased quickly and reached the 94% of 28-day strength at 6 hours. The proper initial curing temperature is 180°C.

scholarly journals Response surface methodology-based optimisation of cost and compressive strength of rubberised concrete incorporating burnt clay brick powder

Heliyon ◽  
2021 ◽  
Vol 7 (12) ◽  
pp. e08565
Author(s):  
David Sinkhonde ◽  
Richard Ocharo Onchiri ◽  
Walter Odhiambo Oyawa ◽  
John Nyiro Mwero
Keyword(s):  
Compressive Strength ◽  
Response Surface Methodology ◽  
Response Surface ◽  
Clay Brick ◽  
Burnt Clay ◽  
Brick Powder
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