Suitability of Polyvinyl Waste Powder as Partial Replacement for Cement in Concrete Production

Ikponmwosa, Efe; Fapohunda, Christopher; Ehikhuenmen, S. O.

doi:10.4314/njt.v33i4.11

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…Therefore, in the ever increasing efforts in converting waste to wealth, bagasse ash could be used as a supplement or partial replacement for cement in order to reduce the cement content requirement which ultimately reduces the cost of construction and maintenance of roads. Some researchers have attempted to examine the behaviours of soils with pozzolanic materials [6] and [7] while others when treated with bagasse ash. However, the chemistry and attributes behind its usefulness in soil stabilization had not been shown.…”

Section: Introductionmentioning

confidence: 99%

Geometric Models for Lateritic Soil Stabilized With Cement and Bagasse Ash

Okonkwo¹,

Agunwamba²,

Iro³

2016

Nig. J. Tech.

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Agricultural and environmental demands for natural aggregates coupled with frequent increases in the price of cement and other binders have consequently escalated the cost of construction, rehabilitation and maintenance of road works. Soil stabilization emerges as an attractive option for providing low-cost roads. Bagasse-ash is an agricultural material obtained after squeezing out the sweet juice in sugarcane and incinerating the fibrous residue to ash. This residue that would have constituted an environmental problem during disposal and handling could be used as a supplement or partial replacement for cement in the cement-bound soil when converted to ash. Thus this study attempted to investigate into the effects of bagasse ash on compaction and strength characteristics of cementstabilized lateritic soil and also to develop geometric models. The compaction, California bearing ratio, unconfined compressive strength and durability tests were carried out on the cement-stabilized soil. Constant cement contents of 2%, 4%, 6% and 8% with variations of bagasse ash from 0% to 20% at 2% intervals and all percentages used were by the weight of dry soil. The multiple regression and the least square approach was used to develop geometric equations which was made less rigorous with Minitab statistical software. The three geometric equations developed covered the relationships of cost of bagasse ash content, optimum moisture content, cement content, California bearing ratio and unconfined compressive strength at 7 days. It was observed that optimum moisture content increased progressively while maximum dry density reduced with increase in bagasse ash content. Also the increase in cement content increased both the optimum moisture content and maximum dry density. In addition, all the strength properties were increased with increase in bagasse ash content and chemistry responsible was also presented. Thus bagasse ash was confirmed to be a good admixture in soil stabilization for road-work. The models were calibrated and verified; and were found to be dependable.

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Section: Introductionmentioning

confidence: 99%

Geometric Models for Lateritic Soil Stabilized With Cement and Bagasse Ash

Okonkwo¹,

Agunwamba²,

Iro³

2016

Nig. J. Tech.

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“…However, 5 % SAMC content in the mix was considered as optimalum for an improved structural performance when compared with normal concrete. Ikponmwosa et al [11], presented a study on the suitability of polyvinyl waste powder as a partial replacement for cement in concrete production. As part of their findings, polyvinyl waste powder has a pozzolanic effect, served as a retarder, reduced workability and higher structural strength up to a 20 % replacement.…”

Section: No /mentioning

confidence: 99%

“…As part of their findings, polyvinyl waste powder has a pozzolanic effect, served as a retarder, reduced workability and higher structural strength up to a 20 % replacement. Reddy et al [12], studied the utilization of sugarcane bagasse ash in concrete by a partial replacement of cement. The results showed that the performance of concrete having up to a 10 % SCBA replacement met the requirements of BS 8110 [13] and can be used for the production of concrete for structural works.…”

Section: No /mentioning

confidence: 99%

Comparative Study and Empirical Modelling of Pulverized Coconut Shell, Periwinkle Shell and Palm Kernel Shell as a Pozzolans in Concrete

2019

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Infrastructural development across the world is fast growing due to the rapid growth in population. This has resulted in consequently creating an increase in the demand for construction materials, especially cement. This study presents a report of a concise investigation on the pozzolanic potentials of Pulverized Coconut Shell (PCS), Periwinkle Shell (PPS) and Palm Kernel Shell (PPKS). The chemical composition of the PCS, PPS and PPKS, physical properties of concrete constituents and mechanical properties of the pozzolans blended concrete were determined. A concrete mix ratio of 1 : 2 : 4 with a w/c of 0.6 was adopted. A total of 270 cubes and 120 cylinders were cast at an interval of 10% from 0% to 50% replacement level and cured in water for 7, 14, 21 and 28 days. Results indicate that the PCS, PPS and PPKS are good retarders as they increased the setting time of cement paste and decreased the workability of concrete as the percentage replacement increased. The addition of the PCS in the mix produced a concrete of lower density while the addition of the PPS and PPKS produced a concrete of a higher density up to a 30% replacement level, further increase resulted to a decrease in density. The compressive and tensile strengths increased with a curing age but decreased with an increasing percentage replacement level for the three pozzolans investigated. However, 10% replacement level of the PCS, PPS and PPKS in concrete is suitable for the production of pozzolans blended concrete for structural works. The models developed are in a good agreement with the experimental results.

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The effect of crushed plastics waste on the structural properties of sandcrete blocks

Akinyele

Toriola

2018

African Journal of Science, Technology, Innovation and Developm

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Suitability of Polyvinyl Waste Powder as Partial Replacement for Cement in Concrete Production

Abstract: This work presents the results of investigation This work presents the results of investigation This work presents the results of investigation This work presents the results of investigation as partial replacement of cement in the production of concrete

Cited by 3 publications

References 3 publications

Geometric Models for Lateritic Soil Stabilized With Cement and Bagasse Ash

Geometric Models for Lateritic Soil Stabilized With Cement and Bagasse Ash

Comparative Study and Empirical Modelling of Pulverized Coconut Shell, Periwinkle Shell and Palm Kernel Shell as a Pozzolans in Concrete

The effect of crushed plastics waste on the structural properties of sandcrete blocks

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