Comparative Study of Superabsorbent Polymers and Pre-soaked Pumice as Internal Curing Agents in Rice Husk Ash Based High-Performance Concrete

During recent years, the Taiwan government launches issues of green building , sustainable engineering , carbon reduction and etc. , to promote balance construction and environment ecology. One of the most important materials in those engineering issues is cement which is used widely in construction industry. Cement emits 0.85 tons of carbon dioxide (CO2) for each ton of cement used in average. This not only causes the waste of energy but also againsts the conception of environmental protection. This research uses the rice husk ash (RHA) which people always regards as the waste material as a pozzolanic material to replace part of cement to make high performance concrete (HPC). Then makes the value analysis and properties investigation for HPC. Based on this research, rice husk (RH) will contain lots of silicon dioxide (SiO2) after burning into RHA. If use RHA to replace part of cement, it can get appropriate properties of compressive strength and durability. More important is that by replacing part of cement, it not only will reduce the emission of CO2 and save money but also reach the goal of global village protection on earth.

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Optimization of Mixture Proportions of High Strength High Performance Concrete Incorporating Rice Husk Ash by Using Response Surface Methodology

Proceedings of the Proceedings of the 1st Workshop on Multidisciplinary and Its Applications Part 1, WMA-01 2018, 19-20 January 2018, Aceh, Indonesia ◽

10.4108/eai.20-1-2018.2282090 ◽

2019 ◽

Author(s):

Syamsul Bahri ◽

H.B Mahmud ◽

Payam Shafigh

Keyword(s):

Response Surface Methodology ◽

Response Surface ◽

Rice Husk ◽

High Performance ◽

Rice Husk Ash ◽

High Performance Concrete ◽

High Strength

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Assessment of the Durability Dynamics of High-Performance Concrete Blended with a Fibrous Rice Husk Ash

Crystals ◽

10.3390/cryst12010075 ◽

2022 ◽

Vol 12 (1) ◽

pp. 75

Author(s):

David O. Nduka ◽

Babatunde J. Olawuyi ◽

Olabosipo I. Fagbenle ◽

Belén G. Fonteboa

Keyword(s):

Rice Husk ◽

High Performance ◽

Rice Husk Ash ◽

High Performance Concrete ◽

Cost Effective ◽

Attenuated Total Reflection ◽

Partial Replacement ◽

X Ray ◽

Durability Properties ◽

Chemical Attack

The present study examines the durability properties of Class 1 (50–75 MPa) high-performance concrete (HPC) blended with rice husk ash (RHA) as a partial replacement of CEM II B-L, 42.5 N. Six HPC mixes were prepared with RHA and used as 5%, 10%, 15%, 20%, 25%, and 30% of CEM II alone and properties are compared with control mix having only CEM II. The binders (CEM II and RHA) were investigated for particle size distribution (PSD), specific surface area (SSA), oxide compositions, mineralogical phases, morphology, and functional groups using advanced techniques of laser PSD, Brunauer–Emmett–Teller (BET), X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared/attenuated total reflection (FTIR/ATR), respectively, to understand their import on HPC. Durability properties, including water absorption, sorptivity, and chemical attack of the HPC samples, were investigated to realise the effect of RHA on the HPC matrix. The findings revealed that the durability properties of RHA-based HPCs exhibited an acceptable range of values consistent with relevant standards. The findings established that self-produced RHA would be beneficial as a cement replacement in HPC. As the RHA is a cost-effective agro-waste, a scalable product of RHA would be a resource for sustainable technology.

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