Performance of Rice Husk Ash as a Partial Cement Replacement in Fine Grained Mortar

This paper investigates the performance of rice husk ash (RHA) in a fine grained mortar. RHA produced from control combustion of rice husk. Fine grained mortar (FGM) is a mortar containing fine sand with a maximum size of 1mm. Chemical composition of RHA and Ordinary Portland Cement (OPC) were investigated using XRF in order to know the silica content in these materials. The particle size of RHA was analyzed to make sure it fineness is same with OPC after grinding. Compressive and flexural strength of FGM were tested on mortar prism for size 40mm x 40mm x 160mm with replacement of RHA 10%, 20% and 30% by weight of cement at 7 days and 28 days ofcuring. All 24 specimens of FGM were caste and tested. The flexural strength, compressive strength of FGM have shown quite encouraging and interesting results. The optimum replacement of RHA in FGM from compressive and flexural strength is 20% by weight of cement.

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INVESTIGATION OF THE INFLUENCE OF PARTICLE SIZE OF RICE HUSK ASH AS ADSORBENT FOR MERCURY IN COLUMN ADSORPTION SYSTEM

Konversi ◽

10.20527/k.v10i2.11726 ◽

2021 ◽

Vol 10 (2) ◽

Author(s):

Desi Nurandini ◽

Riani Ayu Lestari ◽

Isna Syauqiah ◽

Ahmad Rizalli ◽

Ryan Rahmatullah

Keyword(s):

Heavy Metals ◽

Particle Size ◽

Rice Husk ◽

Adsorption Process ◽

Rice Husk Ash ◽

Liquid Waste ◽

Silica Content ◽

Column Adsorption ◽

Before And After ◽

Adsorbent Particle

The presence of heavy metal mercury (Hg2+) in liquid waste has caused serious problems to environmental pollution. One of the most effective method to reduce the levels of heavy metals mercury (Hg2+) in liquid waste is adsorption. Rice husk ash is highly potential to adsorb heavy metals in water because it is a porous material with a high silica content. Therefore, rice husk ash can be used as an adsorbent for heavy metals in liquid waste. The purpose of this study was to determine the level of mercury (Hg2+) that can be adsorbed from the column adsorption process using adsorbent of rice husk ash and to determine the optimum mass of rice husk ash as an adsorbent. The research was conducted using a series of simple adsorption column tools with a circulation time of 120 minutes. While the independent variables were adsorbent particle size of 50, 100, and 200 mesh. Measurement of mercury (Hg2+) levels was carried out on samples before and after treatment with Atomic Absorption Spectrophotometer (AAS). The results showed a significant decrease in Hg2+ levels with the optimum adsorbent particle size of 200 mesh. The value of the adsorbed Hg2+ ion content reached 101.670 mg/L in the adsorption process using adsorbent with 200 mesh particle size .

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Strength Development of Fine Grained Mortar Containing Fly Ash and Rice Husk Ash

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.752-753.182 ◽

2015 ◽

Vol 752-753 ◽

pp. 182-188 ◽

Cited By ~ 1

Author(s):

Zalipah Jamellodin ◽

Mohd Saman Hamidah ◽

Suraya Hani Adnan ◽

Noor Shuhada Mohammad ◽

Wan Yuslinda Wan Yusof

Keyword(s):

Grain Size ◽

Compressive Strength ◽

Fly Ash ◽

Rice Husk ◽

Ordinary Portland Cement ◽

Rice Husk Ash ◽

Innovative Technology ◽

Strength Development ◽

Binder System ◽

Fine Grained

Fine grained mortar (FGM) offers a new innovative technology binder system. The innovative technique is achieved by using a small maximum grain size of 600μm for the mortars. Most of the previous studies have focused on the FA to be replaced in the FGM. There is still lacking of research of using other pozzolanas in making FGM. This paper presents a study of the strength of FGM with partially replacement of ordinary Portland cement (OPC) with fine fly ash (FA) and ground rice husk ash (RHA). Flexural and compressive strength of FGM were tested. The results show that the use of FA and RHA produces FGM with improved strength with the replacement up to 20% than that of the control FGM. The use of FA and RHA is very effective in enhancing strength at the later age of FGM.

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Review paper: Performance of rice husk ash as a material for partial cement replacement in concrete

Materials Today Proceedings ◽

10.1016/j.matpr.2021.02.400 ◽

2021 ◽

Author(s):

Zaidatul Syahida Adnan ◽

Nur Farhayu Ariffin ◽

Sharifah Maszura Syed Mohsin ◽

Nor Hasanah Abdul Shukor Lim

Keyword(s):

Rice Husk ◽

Review Paper ◽

Rice Husk Ash ◽

Cement Replacement ◽

Partial Cement Replacement

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PRODUCTION OF SODIUM SILICATE FROM RICE HUSK ASH WITH REGULATORY SETS MAGNESIUM

Tibuana ◽

10.36456/tibuana.3.01.2200.47-52 ◽

2020 ◽

Vol 3 (01) ◽

pp. 47-52

Author(s):

Yanatra budi Pramana ◽

M. Amin Pahlevi ◽

Zhulianto Ashari ◽

M. Fariz Effendi ◽

Fibra Gilang Ramadhan

Keyword(s):

Sodium Silicate ◽

Rice Husk ◽

Rice Husk Ash ◽

Silica Content ◽

Cosmetic Products ◽

Rice Husks ◽

Mg Addition ◽

Increase Silica Content

Utilization of rice husks in Indonesia in general is still very limited. Utilization of silica contained in rice husk ash, which has been used, among others, in the manufacture of sodium silicate. Silica compounds themselves can be used in and manufacturing basic materials for electronic and ceramic equipment, glass, rubber, cosmetic products, and pharmaceuticals. The addition of Mg can increase the silica content (SiO2) in rice husk ash. The best results show an effective Mg ratio of Mg addition to increase silica content is 1: 1. produces the highest amount of silica which is 58.12% of the rice husk ash with a size of 140 mesh

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Optimization of nanostructured/nano sized rice husk ash preparation

Baghdad Science Journal ◽

10.21123/bsj.2020.17.3(suppl.).0953 ◽

2020 ◽

Vol 17 (3(Suppl.)) ◽

pp. 0953

Author(s):

Medhat Mostafa ◽

Hamdy Salah ◽

Amro B. Saddek ◽

Nabila Shehata

Keyword(s):

Particle Size ◽

Rice Husk ◽

Amorphous Silica ◽

Particle Shape ◽

Rice Husk Ash ◽

Loss On Ignition ◽

Shape Distribution ◽

Disk Mill ◽

Grinding Time

The objective of the study is developing a procedure for production and characterization of rice husk ash (RHA). The effects of rice husk (RH) amount, burning/cooling conditions combined with stirring on producing of RHA with amorphous silica, highest SiO2, lowest loss on ignition (LOI), uniform particle shape distribution and nano structured size have been studied. It is concluded that the best amount is 20 g RH in 125 ml evaporating dish Porcelain with burning for 2 h at temperature 700 °C combined with cooling three times during burning to produce RHA with amorphous silica, SiO2 90.78% and LOI 1.73%. On the other hand, cooling and stirring times affect the variation of nano structured size and particle shape distribution. However, no crystalline phases were found in RHA in all cases. Results proved that the Attritor ball mill was more suitable than vibration disk mill for pulverizing nano structured RHA with 50% of particle size (D50) lower than 45 mm and 99 % of particle size (D99) lower than 144 mm to nanosized RHA with D50 lower than 36 nm and D99 lower than 57 nm by grinding time 8.16 min to every 1 g RHA without changes in morphousity of silica.

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Karakterisasi Bionanofiller Dari Limbah Padi Sebagai Alternatif Penguatan Pada Polimer Komposit

Jurnal Serambi Engineering ◽

10.32672/jse.v3i2.717 ◽

2018 ◽

Vol 3 (2) ◽

Author(s):

Eryani . ◽

Sri Aprilia ◽

Farid Mulana

Keyword(s):

Rice Straw ◽

Rice Husk ◽

Rice Husk Ash ◽

Particle Density ◽

Agricultural Waste ◽

Xrd Analysis ◽

Silica Content ◽

Sem Analysis ◽

Agricultural Produce ◽

Mechanical Properties Characterization

<p>Agricultural waste such as rice straw, rice husk and rice husk ash have not been utilized properly. This waste of agricultural produce can actually be used as an alternative to bionanofiller because it contains an excellent source of silica. The silica content contained in the rice waste when combined with the polymer matrix can produce composites having high thermal and mechanical properties. Characterization of bionanofiller from this rice waste is done by SEM, XRF, FTIR, XRD and particle density. The result of SEM analysis from this rice waste is feasible to be used as filler because it has size 1 μm. Likewise with the results of XRF analysis that rice waste contains a high enough silica component that is 80.6255% - 89.83%. FTIR test results also show that bionanoparticles from rice waste have the same content of silica. In the XRD analysis the best selective gain of rice waste is found in rice husk ash which is characteristic of amorp silica at a range of 2ϴ = 22<br />. The largest density analysis of paddy waste was found in rice husk 0.0419 gr / cm , followed by rice straw by of 0.0417 gr / cm 3 and rice hulk ash 0.0407 g / cm 3</p>

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Rice husk ash (RHA) as a partial cement replacement in modifying peat soil properties

10.1063/1.5022940 ◽

2018 ◽

Cited By ~ 2

Author(s):

Nik Norsyahariati Nik Daud ◽

Mohd Nazrin Mohd Daud ◽

Abubakar Sadiq Muhammed

Keyword(s):

Soil Properties ◽

Rice Husk ◽

Rice Husk Ash ◽

Peat Soil ◽

Cement Replacement ◽

Partial Cement Replacement

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The Potential of Black Rice Husk Ash (BRHA) in Brick Productions

Materials Science Forum ◽

10.4028/www.scientific.net/msf.995.155 ◽

2020 ◽

Vol 995 ◽

pp. 155-160

Author(s):

Nurol Huda Dahalan ◽

M.H. Abdul Mutalib ◽

Hooi Min Yee ◽

Mohd Haris Ridzuan Ooi ◽

Haslinda Abdul Hamid

Keyword(s):

Portland Cement ◽

Rice Husk ◽

Ordinary Portland Cement ◽

Rice Husk Ash ◽

Construction Materials ◽

Black Rice ◽

High Demand ◽

Earth Construction ◽

Optimal Replacement ◽

Depth Study

A lot of researchers have studied the rice husk brick and it is the most widely used material in earth construction. Although study has been carried out on rice husk brick previously, more in-depth study on the aspect of the optimal replacement levels of local black rice husk ash to the Ordinary Portland Cement (OPC) that will meet stated standard requirements for non load-bearing bricks need has not been carried out. Despite all the natural materials have been used in construction materials, black rice husk ash is important to be reviewed based on the rationale of availability and growing rice husk production year by year due to high demand of rice supply.

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Experimental study on concrete with rice husk ash under sulphuric ACID solutions

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i4.5.21148 ◽

2018 ◽

Vol 7 (4.5) ◽

pp. 522

Author(s):

R. Ramya Swetha ◽

Dr. G.Venkata Ramana ◽

K. Anusha Hadassa

Keyword(s):

Experimental Study ◽

Compressive Strength ◽

Portland Cement ◽

Sulphuric Acid ◽

Rice Husk ◽

Industrial Waste ◽

Ordinary Portland Cement ◽

Rice Husk Ash ◽

Acid Solutions ◽

Iron And Calcium

This investigation shows the results on aggressive sulphuric acid on the concrete combined with rice husk ash (RH) when partially replaced for ordinary Portland cement. The husk ash, which mainly contains aluminum ion, silica, iron and calcium oxides, is an industrial waste and poses disposal problems. In this study, the effect of various concentrations (1%, 3%, 5%) of sulphuric acid (H2SO4) on Concrete replaced with various percentages (0%,5%,10%,15% and 20% by weight of cement) of RH is evaluated in-terms of residual compressive strength. The loss of compressive strengths of concrete immersed in various H2SO4 solutions for 7 days 28 days and 60 days indicates that at upto 10% replacement increase in strength was observed after which strengths were decreasing. This increase in strength is attributed to pozzolanic activity of RH.

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