Effect of sawdust ash and eggshell ash on selected engineering properties of lateralized bricks for low cost housing

Ayodele, Adekemi Loretta; Oketope, O.M.; Olatunde, Olufemi Solomon

doi:10.4314/njt.v38i2.1

Cited by 20 publications

(15 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the case of powdered materials, Huynh et al [79] and Namango [92] presented that rice husk ash and cassavas powder addition decreased the density of the samples due to their lower density like the soil used. On the other hand, the result was slightly different for the eggshell ash [102] as the percentage of ash increased to 4% the density of the samples increased. This is because of the very small particles of ash that filled the voids in lateritic soil.…”

Section: Effects Of Agro Wastes On the Density Of Unfired Earth Blocksmentioning

confidence: 81%

“…Ayodele et al [102] utilised sawdust ash and eggshell ash (0, 2, 4, 8 and 16wt%) in the production of lateralised unfired bricks. From the experiment results, it was noticed that the sample with 4% ash had the lowest density (1749 kg/m 3 ) while 16% ash blended sample had the maximum density (1489kg/m 3 ).…”

Section: Bottom Ashmentioning

confidence: 99%

“…Increasing the waste amount in earth samples induces a drop in earth content, which eventually reduces the composite density. The results showed that porosity and water absorption of the samples were inversely related to bulk density [65,77,93,100,102,109,125,128,136,137]. Therefore, more pores of the low-density samples permitted high water flow due to the capillary effect, leading to a higher water absorption coefficient.…”

Section: Effects Of Waste Materials On the Physical Properties Of Unfired Earth Blocksmentioning

confidence: 99%

See 2 more Smart Citations

Application of agro and non-agro waste materials for unfired earth blocks construction: A review

Jannat

Hussien

Abdullah

et al. 2020

Construction and Building Materials

115

View full text Add to dashboard Cite

The production process of conventional building materials consumes a high amount of energy which has a negative impact on the environment. The use of locally available materials and upgradation of traditional techniques can be a good option for sustainable development. Consequently, earth has attracted the attention of the researchers as a building construction material for its availability and lower environmental impact. On the other hand, in developing countries waste disposal from the agricultural and industrial sectors raises another serious concern. The scientists have introduced such waste additives into the earth matrix to improve its performance. Therefore, the present paper reviews the state-of-the-art of research on the effects of these various agro and non-agro wastes in the production of unfired earth blocks. This study is divided into three sections: The first section outlines the different types of waste materials and earth blocks considered in the selected papers. The second part deals in depth with the test results of the different properties (density, water absorption, compressive strength, flexural strength and thermal conductivity) of unfired earth blocks containing waste materials. The last section analyses and compares the results with the current earth-building construction standards. The literature survey presents that the waste materials have a clear potential to partly replace earth by complying with certain requirements. Moreover, the application of such wastes for the development of building construction materials provides a solution that decreases energy usage as well as contributes to effective waste management. Future research on establishing guidelines and standards for the development and production of these sustainable unfired earth building materials is recommended.

show abstract

Section: Effects Of Agro Wastes On the Density Of Unfired Earth Blocksmentioning

confidence: 81%

Section: Bottom Ashmentioning

confidence: 99%

Section: Effects Of Waste Materials On the Physical Properties Of Unfired Earth Blocksmentioning

confidence: 99%

See 1 more Smart Citation

Application of agro and non-agro waste materials for unfired earth blocks construction: A review

Jannat

Hussien

Abdullah

et al. 2020

Construction and Building Materials

115

View full text Add to dashboard Cite

show abstract

“…I t h as been shown that the properties of some of these tropical laterites need to be improved [10]. In the specific case of stabilised laterite soil for adobe brick production, some studi e s have used cement and natural rubber latex [6], sawdust and egg shell ash [11], coconut shell ash [12]. The laterite soils collected from different locations were stabilised with different percentages of the additives.…”

Section: Introductionmentioning

confidence: 99%

Some Properties of Phosphoric Acid Stabilised Laterized Adobe Bricks

Ayodele

Mohammed

Fajobi

et al. 2020

MJCE

View full text Add to dashboard Cite

The changes in the compressive strength of laterized bricks produced from stabilised residual tropical laterite (RTL) are reported in this paper. The RTL was stabilised with different percentages (2, 4, 6 and 8%) by weight of dry soil of 1M phosphoric acid (PA). Some geotechnical properties and elemental oxide composition of the RTL were determined. Adobe bricks were produced from the PA stabilised, 5% cement stabilised and unstabilised RTL. Adobe bricks produced from 5% cement stabilised RTL served as the control. The bricks were cured under ambient air condition for 7, 14, 21 and 28 days. The pH, dry density, moisture content and compressive strength (fc) of the bricks were determined at the end of each curing period. The influence of PA was evaluated using the changes in the fc of the adobe bricks. The effectiveness of PA was also evaluated using a standard minimum requirement. Statistical analysis of the results was done using Analysis of variance. There was about 90 and 200% increase in fc of PA and cement stabilised Adobe bricks, respectively. The fc of 6% PA stabilised and cement stabilised adobe bricks met the minimum requirement. It is concluded that PA has great potential for stabilising Adobe bricks for building.

show abstract

“…Effect of the mixture sawdust ash and eggshell ash on engineering properties of lateralized bricks for low cost housing as compared with cement lateralized bricks was examined by Ayodele et al [18]. The ash mixture was mixed with the laterite using 2, 4, 8 and 16% by weight of dry soil to produce bricks which was later subjected to compressive strength test.…”

Section: Introductionmentioning

confidence: 99%

Effect of Compactive Efforts on Strength of Laterites Stabilized with Sawdust Ash

et al. 2019

View full text Add to dashboard Cite

This study investigates the effects of different compactive efforts on the strength of laterites stabilized with sawdust ash (SDA). Laterites in the categories of A-7-5 and A-7-6 were considered because they are not suitable in the natural states as subgrade materials. The geotechnical properties of the laterites in their natural states were determined. The sawdust was burnt and sieved through 600micron. The sawdust ash (at 2%, 4%, 6%, 8% and 10%) was added to the laterites and the atterberg limits were determined, while the California bearing ratio and Unconfined compression test were determined using three compactive efforts (596, 1192 and 2682KN-m/m3).It was generally observed that the maximum dry densities of the natural and stabilised laterites increase with increase in the compactive efforts, while the optimum moisture contents reduce. The plasticity indices of the laterites increased with the addition of SDA. The optimum values of the MDDs (2006 and 1878 kg/m3) were observed at 4% and 6% SDA of 2682 kN-m/m3 compactive effort for samples A and B, respectively. The soaked and unsoaked CBR values of the soils at natural state are 4.89 and 16.33%, and 3.4 and 5.62% for samples A and B, respectively. The results indicate that the higher the compactive efforts, the higher the CBR values of the two samples. Increase in SDA contents of soil samples A and B showed a non-predictable trend on their CBR values. The Unconfined Compressive Strength values at natural and treated states fell below the requirements. Generally, it was found that the use of sawdust ash alone as stabilizer was not effective. Therefore, it was concluded that future studies should consider the use of the sawdust ash in combination with cement or lime.

show abstract

Effect of sawdust ash and eggshell ash on selected engineering properties of lateralized bricks for low cost housing

Cited by 20 publications

References 4 publications

Application of agro and non-agro waste materials for unfired earth blocks construction: A review

Application of agro and non-agro waste materials for unfired earth blocks construction: A review

Some Properties of Phosphoric Acid Stabilised Laterized Adobe Bricks

Effect of Compactive Efforts on Strength of Laterites Stabilized with Sawdust Ash

Contact Info

Product

Resources

About