Green concrete production with ceramic wastes and laterite

Awoyera, Paul O.; Akinmusuru, Joe O.; Ndambuki, Julius M.

doi:10.1016/j.conbuildmat.2016.04.108

Cited by 108 publications

(46 citation statements)

References 16 publications

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“…However, there are no many studies [21], which have considered using both laterite and kaolin-rich material such as ceramic or marble products in mortar and concrete. Therefore, the current study is aimed at exploring different combinations of laterite and ceramic fines as a replacement for natural fine aggregate in mortars, and also at identifying the significant effects associated with such combinations on strength and microstructure properties of mortars.…”

Section: Introductionmentioning

confidence: 99%

“…Currently, there are quite a number of interesting studies regarding the use of laterite [21,[23][24][25] and ceramics [16,18] as replacement for natural aggregates. However, there are no many studies [21], which have considered using both laterite and kaolin-rich material such as ceramic or marble products in mortar and concrete.…”

Section: Introductionmentioning

confidence: 99%

“…A quantity of laterite ranging from 10 -30% is recommended for a replacement of natural sand in concrete [21,22], especially when a volumetric mix of 1:1.5:3 (cement; sand; gravel) is to be used. Unfortunately, adding large amounts of laterite to concrete may negate the strength development in concrete, because laterite contains fine clay materials.…”

Section: Introductionmentioning

confidence: 99%

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Suitability of mortars produced using laterite and ceramic wastes: Mechanical and microscale analysis

Awoyera

Dawson

Thom

et al. 2017

Construction and Building Materials

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Using industrial wastes and local materials as artificial aggregates in cement based materials remains a relevant measure for conservation of natural sources. In this study, novel cementitious mixes containing pulverized ceramic blended cement, ceramic aggregate and laterite were systematically combined to produce cement mortars. The mortar specimens were cured in water for a maximum of 28 days. At maturity, nondestructive tests, X-ray CT scan and Ultrasonic pulse velocity, were performed on hardened mortars. Thereafter, a series of predefined properties, namely dry bulk density, compressive and flexural strength, water absorption coefficient (due to capillary) of the hardened mortars were determined. Finally, in order to understand the hydration mechanism of the materials as it relates to the strength properties, microscale tests, SEM and XRD, were used to examine the fragments of the selected mortars. From the results, a mortar sample containing 10% ceramic powder and 100% ceramic aggregate as replacements for cement and sand respectively, gave higher strength values than the reference and other mixes.Microstructural analysis of the best mix revealed that it has larger proportions of ettringite, portlandite and calcite than the reference mix, and this could be responsible for the strength 2 gained. Thus, despite the apparent low reactivity of crushed ceramic material, this can improve bonding in cement-based mixture, when used at an appropriate concentration.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Suitability of mortars produced using laterite and ceramic wastes: Mechanical and microscale analysis

Awoyera

Dawson

Thom

et al. 2017

Construction and Building Materials

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“…For single-span beams, as well as consoles from metal or wood, in this way almost ideal elements of equal resistance could be achieved. In reinforced concrete it is more difficult, however creation of variable section of elements in this case also leads to significant effect [1,2,3].…”

Section: Introductionmentioning

confidence: 99%

“…Taking into consideration that reinforced concrete constructions today and in the nearest future are being the basis of construction the issues of increase of their ecologic safety and techno economical attractiveness are rather pressing [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Ecologically Safe and Techno Economically Efficient Reinforced Concrete Constructions of Equal Resistance

Mailyan

2016

MATEC Web Conf.

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Abstract.Creation of reinforced concrete constructions of ideally equal resistance is practically impossible, however maximum approximation to such solution should become the main purpose of constructions designing, since it provides for minimal materials consumption. Changing of total cross section of pre-stressed reinforcement along the span with the purpose of approximation to elements of equal resistance is possible during creation of stepped section of the element. In particular, the suggested solution allows to closely approximate the ideal beam of equal resistance, at which with decrease of external moment the height of element's cross-section and the area of cross-section of extrastrong pre-stressed reinforcement are also decreased. In accordance with the existing reinforced concrete construction with the same class of concrete, reinforcement steel and load the suggested one due to more advanced profile is the most economic -the consumption of steel, concrete and weight of the beam are lower in it. This increases the ecological safety of constructions, as well.

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New Light Weight Mortar for Structural Application: Assessment of Porosity, Strength and Morphology Properties

Awoyera

Gobinath

Haripriya

et al. 2019

Learning and Analytics in Intelligent Systems

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Green concrete production with ceramic wastes and laterite

Cited by 108 publications

References 16 publications

Suitability of mortars produced using laterite and ceramic wastes: Mechanical and microscale analysis

Suitability of mortars produced using laterite and ceramic wastes: Mechanical and microscale analysis

Ecologically Safe and Techno Economically Efficient Reinforced Concrete Constructions of Equal Resistance

New Light Weight Mortar for Structural Application: Assessment of Porosity, Strength and Morphology Properties

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