Lateritic cement- and lime-stabilised bricks and blocks for affordable housing

Olutoge, Festus; Booth, Colin A.; Olawale, Simon; Alebiosu, Olaolu A.

doi:10.1680/jcoma.16.00062

Cited by 5 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The investigation found that the fly ash-lime stabilization was able to produce stabilized blocks that met the standard requirements for compressive strength, water absorption and efflorescence [21]. Compressive strength tests revealed that cement-stabilised blocks and bricks had higher compressive strengths than those stabilised with lime [22].…”

Section: Introductionmentioning

confidence: 97%

Properties of Compressed Interlock Earth Blocks Manufactured from Locally Available Lateritic Soil for Low Cost Housing Projects

Dissanayake

2021

AEF

View full text Add to dashboard Cite

This investigation was carried out to identify the engineering properties of compressed interlock earth blocks manufactured from locally available lateritic soil and introduce to use the manufactured soil blocks to minimize the material and finishing cost for the low cost housing projects. The soil samples used in this study were well-graded lateritic sandy soil which has the composition of 1.9% gravel, 94% sand and 4.1% silt / clay. These soil samples were passed through the 100-mesh sieve and mixed with ordinary Portland cement to prepare the admixture. While compressing through a hydraulics jack by varying the compositions and the volume of soil-cement admixtures, compaction soil blocks were manufactured in a locally fabricated 250 mm x125 mm x100 mm standard steel mould. The manufactured soil blocks allowed to cure while spraying small quantity of water and covering with polythene for 28 days. Average compressive strengths of soil blocks made with 5% cement with 1.6:1 and 1.8:1 volume compactions were 1.3 Mpa and 1.9 Mpa, respectively. However, both compressive strength values were less than the standard limits of 2.8 MPa stated in SLS 1382:2009, local standards for soil blocks used for construction industry. However, soil blocks made with 10% cement under same compaction ratios attained compressive strengths of 3.0 MPa and 3.6 MPa respectively and it is above the required standards limits. However, 15% and 20% cement containing earth blocks have much higher compressive strengths but increase the cost of production. Regression analysis results confirmed the strong correlation between cement content and the compressive strength of the soil bricks. The soil bricks manufactured with more than 12.06% cement soil mix by maintaining compaction ratio into 1.6:1 or Soil bricks manufactured with more than 5.16% cement mix by maintaining compaction ratio into 1.8:1 will produce standards soil bricks for construction industry and these results further confirmed that wet and dry compressive strength of soil bricks will increase with increasing the compaction ratio and the cement content. However, when considering the compressive strength, water absorption level and cost effectiveness, soil bricks manufactured by maintaining compaction ratio into 1.8:1 with more than 5.16% cement mix will produce required standards cost effective soil bricks for construction industry.

show abstract

Section: Introductionmentioning

confidence: 97%

Properties of Compressed Interlock Earth Blocks Manufactured from Locally Available Lateritic Soil for Low Cost Housing Projects

Dissanayake

2021

AEF

View full text Add to dashboard Cite

show abstract

“…There is an increasing cost of primary stabilizers (cement and lime) used in brick production (Ogunbiyi et al, 2014;Olutoge et al, 2018). Also, the production of cement and lime in itself generates high 𝐶𝑂 2 emissions (Rubenstein, 2012;Stork et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Treatment of Clay with Oil Palm Fibre Ash and Rice Husk Ash Mixture for Burnt Clay Bricks Production

A.Y.¹,

R.A.²,

D.S.³

2022

International Journal of Mechanical and Civil Engineering

View full text Add to dashboard Cite

The current study examines the use of oil palm fibre ash (OPFA) and rice husk ash (RHA) mixture in the treatment of A-6 Makurdi clay for burnt brick production. The results show that the compressive strength of 9.4 MN/m2 for burnt untreated brick increased to 10.86 MN/m2 for burnt 2%OPFA+2%RHA treated brick. The corresponding water absorption of 14.9% for the burnt untreated brick increased to 16.2% for burnt 2%OPFA+2%RHA treated brick. The strength value of 10.86 MN/m2 is greater than 10.3 MN/m^2 which is the minimum strength value for negligible weather (NW) conditions. The water absorption of 16.2% is less than 17%, 22% and ‘no limit’ which are the maximum values for severe weather (SW), moderate weather (MW) and NW respectively. Based on combined strength and water absorption criteria, burnt bricks production with 2%OPFA+2%RHA treated A-6 Makurdi clay is adequate for use as a load-bearing brick in wall areas of NW condition.

show abstract

“…Laterite is some soil obtained from the weathering and percolation of large varieties of rock found in the tropical and sub-tropical humid environment. It is composed of iron oxide, aluminum oxide, silica, which are disintegrated into clay components of kaolite and illite formed from the weathering of rocks and other minute minerals (Lemongna et al, 2011;Olutoge et al, 2018). Keel 1963 as cited by Olowu et al (2014) discovered that different types of clays deposited at various geological periods ranging from soft to hard shale are used for the production of bricks, which are either sun-dried, also referred to as adobe or burnt.…”

Section: Introductionmentioning

confidence: 99%

Effects of Synthetic Foam on the Properties of Stabilized Lateritic Bricks

2021

View full text Add to dashboard Cite

Managing the production costs of construction projects is crucial especially in the aspect of material management. The use of lightweight materials reduces the dead load in structures, thus the reduction in the use of reinforcement and concrete in the foundation. To this end, this study examined the effect of synthetic foam on the properties of stabilized lateritic brick with a view to producing lightweight stabilized laterite brick for use on weak soils with low bearing capacity. Laboratory tests were conducted on the bricks produced to determine the density, compressive strength, and water absorption properties at 7, 14, 21, and 28 days. Preformed foam using synthetic foaming agent was used at 0%, 25%, 50%, 75% and 100% to replace the water in the experiment. One hundred twenty samples of stabilized foamed lateritic bricks were produced at a mixed ratio of 1:4 (cement: laterite) using a 0.6 water/cement ratio. The result showed that the bricks at all percentages of foam content meet up with the minimum requirement of compressive strength of 1.6N/mm2, 2.0N/mm2 and 3.5N/mm2 recommended by the Nigerian Building code, Nigerian Building and Road Research Institute, and the third class brick of the BS 3921:1985 respectively. The water absorption is within the limits of bricks specified in standards as 15%. The highest compressive strength was recorded at 25% foam inclusion (4.839N/mm2) on 28th day hence concluding that foaming agent stabilizes the characteristics strength of laterite bricks and also reduces its density.

show abstract

Lateritic cement- and lime-stabilised bricks and blocks for affordable housing

Abstract: The compressive strengths of cement-and lime-stabilised lateritic bricks and blocks were investigated for economical construction in developing countries. Cement-stabilised lateritic blocks and bricks were found to have the best performance and are thus recommended for use.

Cited by 5 publications

References 6 publications

Properties of Compressed Interlock Earth Blocks Manufactured from Locally Available Lateritic Soil for Low Cost Housing Projects

Properties of Compressed Interlock Earth Blocks Manufactured from Locally Available Lateritic Soil for Low Cost Housing Projects

Treatment of Clay with Oil Palm Fibre Ash and Rice Husk Ash Mixture for Burnt Clay Bricks Production

Effects of Synthetic Foam on the Properties of Stabilized Lateritic Bricks

Contact Info

Product

Resources

About