Physical and chemical contributions of Rice Husk Ash on the properties of mortar

Jamil, Maslina; Khan, Md. Nabi Newaz; Karim, Md. Rezaul; Kaish, A. B. M. A.; Zain, Muhammad Fauzi Mohd.

doi:10.1016/j.conbuildmat.2016.10.029

Cited by 117 publications

(54 citation statements)

References 33 publications

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“…The EDS of N10 mortar ( Figure 15) shows a higher amount of oxygen (O), calcium (Ca) and silica (Si), which are in the denser zones. This can be the major explanation for the improved strength properties of the N10 mortar, in that, higher amounts of Ca, Si, and O in its dense paste zone [5], are responsible for secondary C-S-H gel formation. Consequently, the C-S-H gel reacts with cement hydration product Ca(OH)2 [5].…”

Section: Microscale Analysis Of Mortarsmentioning

confidence: 99%

“…This can be the major explanation for the improved strength properties of the N10 mortar, in that, higher amounts of Ca, Si, and O in its dense paste zone [5], are responsible for secondary C-S-H gel formation. Consequently, the C-S-H gel reacts with cement hydration product Ca(OH)2 [5]. On the other hand, Ca, Si and O are lower in the reference mix ( Figure 17).…”

Section: Microscale Analysis Of Mortarsmentioning

confidence: 99%

“…The strength gained in mix N10 may be as a result of filler action (contributed by ceramic powder which is finer than cement) and the pozzolanic action of the entire mixture. According to Jamil et al [5] and Chindaprasirt and Rukzon [35], filling actions aid strength improvement in blended cemented materials, and it occurs when the substitute material is finer than the cement particles.…”

Section: Compressive and Flexural Strengthmentioning

confidence: 99%

“…In recent years, mortars made with various modified materials have been investigated [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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: Microscale Analysis Of Mortarsmentioning

confidence: 99%

Section: Microscale Analysis Of Mortarsmentioning

confidence: 99%

Section: Compressive and Flexural Strengthmentioning

confidence: 99%

“…In recent years, mortars made with various modified materials have been investigated [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Awoyera

Dawson

Thom

et al. 2017

Construction and Building Materials

View full text Add to dashboard Cite

show abstract

“…However, the ability to enhance the mechanical properties is also influenced by the crystalline structure of the material which is more dependent on the combustion process [14]. The comparative study of the filler-effect of sand and pozzolanic properties of rice husk fly-ash of the same size has shown that the pozzolanic reaction of the latter can be considerably more influential on compressive strength from 14 up to 90 days from casting [15]. It was reported that the replacement of 20% cement with rice husk fly-ash in concrete can result in the compressive strength results similar to results of cement specimens.…”

Section: Introductionmentioning

confidence: 99%

Utility assessment of biomass fly-ash for production of concrete products

2017

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International agreements oblige our state to develop ecological sources of energy, one of which is biomass. During its combustion fly-ashes are produced. Several studies have shown that they might be useful in concrete production. The article presents a comparison of biomass fly-ash and coal fly-ash influence on the properties of cement composites. The replacement levels of cement by fly-ash (FA) were 20%, 40% and 60%. Biomass fly-ash FA(B) have replaced coal fly-ash by 0%, 50% and 100%. The compressive strength tests showed similarities in strength development of coal and biomass fly-ashes concretes. Specimens with biomass fly-ash presented similar or better abrasion resistance comparing to coal fly-ash samples.Keywords: biomass fly-ash, cement, concrete Streszczenie Zobowiązania międzynarodowe obligują nasz kraj do produkcji energii z wykorzystaniem jej odnawialnych źródeł, jednym z nich jest biomasa. Podczas jej spalania powstają popioły lotne. Przeprowadzone dotychczas badania sugerują, że produkcja wyrobów betonowych może stanowić skuteczny sposób ich wykorzystania. Celem artykułu jest porównanie wpływu popiołu lotnego ze spalania biomasy i spalania węgla. Popioły (FA) stanowiły 20%, 40% lub 60% masy spoiwa. Popiół lotny z biomasy FA(B) dozowany był w ilości 0%, 50% lub 100% masy popiołów. Wyniki badań wytrzymałość na ściskanie wykazały podobny rozwój wytrzymałości betonów. Próbki z dodatkiem popiołów z biomasy charakteryzowały się zbliżoną lub większą odpornością na ścieranie od próbek z dodatkiem popiołów węglowych.Słowa kluczowe: popioły lotne ze spalania biomasy, cement, beton

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Wood Plastic Composites Produced from Postconsumer Recycled Polystyrene and Coconut Shell: Effect of Coupling Agent and Processing Aid on Tensile, Thermal, and Morphological Properties

Ling

Koay

Chan

et al. 2019

Polymer Engineering & Sci

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Expanded polystyrene (EPS) has been widely used as a disposable packaging material in many industries thanks to properties like low density, lightweight, high impact, and vibration damping. Although usage of EPS increases annually, recycling facilities often refused to process postconsumed EPS due to the poor economic viability associated with high logistics and transportation cost in collection, storage, and shipment of the material. The objective of this research is to enhance the value chain of postconsumed EPS by investigating its potential as feedstock in the development of sustainable wood plastic composites (WPC), thereby providing an attractive business opportunity that also increases interest in EPS recycling and indirectly continue the lifespan of disposed EPS. Varying compositions of recycled polystyrene (rPS), coconut shell (CS), maleated polystyrene (MAPS) and Ultra‐Plast WP516 were compounded using a HAAKE internal mixer and compression molded to form WPC. The effects of material formulation on mechanical, thermal, and morphological properties of the composites were studied. The experiment showed that WPC formulated with 100 phr of rPS, 30 phr of CS, 3 phr of MAPS, and 1 phr of Ultra‐Plast WP516 possesses higher modulus and tensile strength compared to the neat EPS, measured at 2.5 GPa and 27.5 MPa, respectively. Although the WPC experienced initiation of thermal degradation at a temperature lower than neat rPS, but the thermal stability of rPS/CS composites containing varying composition of MAPS and Ultra‐Plast WP516 was better at high temperature. Furthermore, a 50% weight loss took place at a higher temperature. Nevertheless, the glass transition temperature of the rPS/CS composite with addition of MAPS and Ultra‐Plast WP516 was found lower than the neat rPS. POLYM. ENG. SCI., 60:202–210, 2020. © 2019 Society of Plastics Engineers

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Physical and chemical contributions of Rice Husk Ash on the properties of mortar

Cited by 117 publications

References 33 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

Utility assessment of biomass fly-ash for production of concrete products

Wood Plastic Composites Produced from Postconsumer Recycled Polystyrene and Coconut Shell: Effect of Coupling Agent and Processing Aid on Tensile, Thermal, and Morphological Properties

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