Geopolymer cement and concrete Properties Semantic Scholar
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Geopolymer cement and concrete Properties Semantic Scholar.

Geopolymer Concrete: A Review of ... - Semantic Scholar

Geopolymer results from the reaction of a source material that is rich in silica and alumina with alkaline liquid. It is essentially cement free concrete. This material is being studied extensively and shows promise as a greener substitute for ordinary Portland cement concrete in some applications. Research is shifting from the chemistry domain to engineering applications and commercial ...

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[PDF] PROPERTIES OF GEOPOLYMER CEMENTS Semantic

Geopolymer cement, high-alkali (K-Ca)-Poly(sialate-siloxo) cement, results from an inorganic polycondensation reaction, a so-called geopolymerisation yielding three dimensional zeolitic frameworks. High-tech Geopolymer K-Poly(sialate-siloxo) binders, whether used pure, with fillers or reinforced, are already finding applications in all fields of industry. These applications are to be found in ...

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[PDF] Geopolymer and Portland cement concretes in ...

High-strength Portland cement concrete has a high risk of spalling in fire. Geopolymer, an environmentally friendly alternative to Portland cement, is purported to possess superior fire-resistant properties. However, the spalling behaviour of geopolymer concrete in fire is unreported. In this paper, geopolymer and Portland cement concretes of strengths from 40 to 100 MPa were exposed to rapid ...

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Clean production and properties of geopolymer concrete;

Apr 01, 2020  The incessant production of cement has increased the amount of CO2 being released into the atmosphere; thus, aggravating the issue of global warming which has an adverse effect on the environment. Therefore, a more sustainable approach and a careful review of the existing admixtures used to replace conventional concrete have become highly imperative.

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Geopolymer cement and concrete: Properties -

Jan 01, 2020  One of the options is production of geopolymer cement and concrete. The name geopolymer was first proposed by Joseph Davidovits, a French researcher in 1970s [3] . Raw materials (basically industrial/agricultural wastes) containing aluminosilicate when treated with alkali and alkali silicate gives geopolymer cement (GPC).

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Strength and Setting Times of Low ... - Semantic Scholar

concrete with excellent physical and mechanical properties. Geopolymer is used as the binder to completely replace ordinary Portland cement in producing Geopolymer concrete. In order to produce Geopolymer, low-calcium fly ash needs to be activated by an alkaline solution to produce polymeric Si-O-Al bonds. Geopolymer concrete has the

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Bond behaviour of GFRP reinforced geopolymer cement

Geopolymer cement (GPC) concrete are promising alternative construction materials for steel bars and Ordinary Portland Cement (OPC) concrete respectively. In this study, the bond behaviour between these two materials is investigated by using beam-end specimen tests. The bond behaviour of 15.9 mm diameter sand-coated GFRP bar was investigated.

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Engineering properties of geopolymer concrete -

Jan 01, 2009  The elastic properties of hardened geopolymer concrete are similar to those observed in the case of Portland cement concrete. Heat-cured low-calcium fly ash-based geopolymer concrete also shows excellent resistance to sulfate attack, good acid resistance, undergoes low creep, and suffers very little drying shrinkage.

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Mechanical and Microstructural Properties of Copper Slag ...

DOI: 10.5755/j02.ms.26521 Corpus ID: 237249884. Mechanical and Microstructural Properties of Copper Slag Based Blended Geopolymer Concrete @article{Rathanasalam2021MechanicalAM, title={Mechanical and Microstructural Properties of Copper Slag Based Blended Geopolymer Concrete}, author={Vijayasarathy Rathanasalam and Jayabalan Perumalsami and K. Jayakumar},

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(PDF) Resistance to Sulfuric Acid Corrosion of Geopolymer ...

Nov 23, 2021  Geopolymer binder is expected to be an optimum alternative to Portland cement due to its excellent engineering properties of high strength, acid corrosion resistance, low permeability, good ...

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Geopolymer cement and concrete: Properties - ScienceDirect

Jan 01, 2020  One of the options is production of geopolymer cement and concrete. The name geopolymer was first proposed by Joseph Davidovits, a French researcher in 1970s [3] . Raw materials (basically industrial/agricultural wastes) containing aluminosilicate when treated with alkali and alkali silicate gives geopolymer cement (GPC).

Get Price

Bond behaviour of GFRP reinforced geopolymer cement

Geopolymer cement (GPC) concrete are promising alternative construction materials for steel bars and Ordinary Portland Cement (OPC) concrete respectively. In this study, the bond behaviour between these two materials is investigated by using beam-end specimen tests. The bond behaviour of 15.9 mm diameter sand-coated GFRP bar was investigated.

Get Price

Sustainability Free Full-Text Life Cycle Impact ...

Dec 07, 2021  Concrete is the most widely used construction material and the second most-consumed substance on earth, after water [].Ordinary portland cement (OPC) used in concrete production has detrimental effects on the environment due to the release of a high amount of greenhouse gas, especially CO 2.One ton of CO 2 is released by the production of one ton of OPC [1,2].

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An Experimental Investigation on the behaviour of Portland ...

of geopolymer concrete is tougher compared to that of conventional concrete. An experimental study was conducted to analyze the acid attack resistance of geopolymer concrete and Portland cement concrete. Durability of the concrete specimens were analyzed by immersing them in ph 1, ph 3 and

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Performance of fly ash based geopolymer concrete with ...

Dec 06, 2021  The geopolymer concrete density in mixtures, ranging from 2345 kg/m 3 to 2465 kg/m 2, appears in Fig. 3 at 28 days. As the steel mill slag grows, it is observed that the concrete density also increases as the steel mill slag replaces the steel mill slag. Geopolymer cement is very similar to Portland standard concrete ranging from 2200 to 2600 ...

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Strength and Microstructural Analysis of Geopolymer ...

Jun 16, 2021  Cement and Concrete Composites, 2011, 33(1): 46–54. CAS Article Google Scholar [32] Wang Y G, Liu X M, Zhang W, et al. Effects of Si/Al Ratio on the Efflorescence and Properties of Fly Ash Based Geopolymer[J]. Journal of Cleaner Production,

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‪Ning Li‬ - ‪Google Scholar‬

Mechanical and fracture properties of ultra-high performance geopolymer concrete: Effects of steel fiber and silica fume Y Liu, C Shi, Z Zhang, N Li, D Shi Cement and Concrete Composites 112, 103665 ,

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Hybrid Materials Based on Fly Ash, Metakaolin, and Cement ...

Nov 15, 2021  Hybrid OPC-geopolymer concrete has a lowered carbon footprint and improved ambient temperature curing while maintaining the positive properties of heavy metals immobilization, generally good mechanical properties, and high durability [50,51]. In the case of hybrid OPC-geopolymer concrete, generally of high FA content (70–90%) and low OPC ...

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Research Articles Challenge Journal of Concrete Research ...

Effects of rubber particles on mechanical properties of lightweight aggregate concrete. Construction and Building Materials, 91, 145–149. Mo KH, Yeoh KH, Bashar II, Alengaram UJ, Jumaat MZ (2017). Shear behaviour and mechanical properties of steel fiber-reinforced cement-based and geopolymer oil palm shell lightweight aggregate concrete.

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Applied Sciences Free Full-Text Effect of Fiber ...

Nov 06, 2021  An additional variable used in the study was the molar concentration of the alkali solution (5 M and 10 M) for the different types of geopolymer samples. The mechanical properties of geopolymer materials and geopolymer–cement hybrids are the highest when reinforcement in the form of carbon fiber is used.

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A Comparative Study of Void Distribution Pattern on the ...

The correlation between the void structure, as a representative of bleeding behaviour, and the strength of concrete is investigated in the current article. Early age cracking, due to dry shrinkage, can negatively influence the durability of pavement structures. Also, dry shrinkage of concrete is directly proportional to the bleeding rate. Thus, modifying the bleeding rate reduces the early ...

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‪John Provis‬ - ‪Google Scholar‬

This "Cited by" count includes citations to the following articles in Scholar. The ones marked * may be different from the article in the profile. ... cement and concrete research 37 (12), 1590-1597, 2007. 1541: ... Geopolymer foam concrete: An emerging material for sustainable construction. Z

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Mechanical and Microstructural Properties of Copper Slag ...

DOI: 10.5755/j02.ms.26521 Corpus ID: 237249884. Mechanical and Microstructural Properties of Copper Slag Based Blended Geopolymer Concrete @article{Rathanasalam2021MechanicalAM, title={Mechanical and Microstructural Properties of Copper Slag Based Blended Geopolymer Concrete}, author={Vijayasarathy Rathanasalam and Jayabalan Perumalsami and K. Jayakumar},

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(PDF) Resistance to Sulfuric Acid Corrosion of Geopolymer ...

Nov 23, 2021  Geopolymer binder is expected to be an optimum alternative to Portland cement due to its excellent engineering properties of high strength, acid corrosion resistance, low permeability, good ...

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Sustainability Free Full-Text Life Cycle Impact ...

Dec 07, 2021  Concrete is the most widely used construction material and the second most-consumed substance on earth, after water [].Ordinary portland cement (OPC) used in concrete production has detrimental effects on the environment due to the release of a high amount of greenhouse gas, especially CO 2.One ton of CO 2 is released by the production of one ton of OPC [1,2].

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Materials Free Full-Text Life Cycle Assessment and ...

Geopolymer concrete (GPC) has drawn widespread attention as a universally accepted ideal green material to improve environmental conditions in recent years. The present study systematically quantifies and compares the environmental impact of fly ash GPC and ordinary Portland cement (OPC) concrete under different strength grades by conducting life cycle assessment (LCA).

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Performance of fly ash based geopolymer concrete with ...

Dec 06, 2021  The geopolymer concrete density in mixtures, ranging from 2345 kg/m 3 to 2465 kg/m 2, appears in Fig. 3 at 28 days. As the steel mill slag grows, it is observed that the concrete density also increases as the steel mill slag replaces the steel mill slag. Geopolymer cement is very similar to Portland standard concrete ranging from 2200 to 2600 ...

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Mechanical properties and microscale changes of geopolymer ...

Oct 01, 2017  The effect of micro-encapsulated phase change materials (MPCM) in solid and liquid states on the mechanical properties and microstructure of geopolymer and Portland cement concretes is investigated. Geopolymer concrete (GPC) and Portland cement concrete (PCC) containing different amounts of MPCM were prepared and cured at both 20 °C and 40 °C.

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Durability Study on High Calcium Fly Ash Based Geopolymer ...

Nov 26, 2015  This study presents an investigation into the durability of geopolymer concrete prepared using high calcium fly ash along with alkaline activators when exposed to 2% solution of sulfuric acid and 5% magnesium sulphate for up to 45 days. The durability was also assessed by measuring water absorption and sorptivity. Ordinary Portland cement concrete was also prepared as control concrete.

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Effect of Size of Coarse Aggregate on Mechanical ...

Jun 15, 2021  These issues led the researchers to explore ecological green concrete materials such as geopolymer concrete (GPC). Geopolymer cement was introduced by Davidovits et al. and it elicited a growing interest due to its attractive properties, including higher resistance to chemical attacks [6,7], resistance to freeze-thaw cycles , and excellent ...

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Innovative concretes for low-carbon constructions: a ...

The first one is related to the enhancement of physical and mechanical properties of concrete, the second one is related to resource efficiency and raw materials’ saving and the third one concerns the role of smart concretes in building energy efficiency. ... , geopolymer cement , cement primarily of fly ash and recycled materials , capturing ...

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Comparative study: nanosilica, nanoalumina, and nanozinc ...

Mar 04, 2021  The concrete being one of the most commonly used material in construction industry in spite of its superior properties imposes negative environmental impacts. The main culprit among all the constituents of concrete is the cement as its production processes are highly energy consuming and are not environmental friendly because of the emission of ...

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Durability of Geopolymer Concrete Geopolymer Solutions

Geopolymer Concrete. Resistance to freeze and thaw cycling Freeze and Thaw. Strength development time can be greatly reduced. The ultimate strength can be achieved within about 2 hours using electrical treatment, 4 to 6 hours using heat and 28 days with normal curing. Supports an insulating R-value as high as 8 per inch of material when ...

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The Effects of Nanosilica on Mechanical Properties and ...

Nanosilica produced from physically-processed white rice husk ash agricultural waste can be incorporated into geopolymer cement-based materials to improve the mechanical and micro performance. This study aimed to investigate the effect of natural nanosilica on the mechanical properties and microstructure of geopolymer cement. It examined the mechanical behavior of

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Abstract of Analysis of Geo Polymer Concrete Behaviour with GG

Geo-polymer concrete is such a one and in the present study, to produce the geo-polymer concrete the Portland cement is fully replaced with GGBS (Ground granulated blast furnace slag) and alkaline liquids are used for the binding of materials. The alkaline liquids used in this study for the polymerization are the solutions of Sodium-hydroxide ...

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Experimental Study on Blast Furnace Nickel Slag Powder and ...

Jan 01, 2021  In: International Conference on Alkaline Cement Concrete, pp. 1–19 (1994) Google Scholar 21. ACI 211.4R-93, Guide for selecting proportion for high-strength concrete with portland cement and Fly ash, Reported by ACI Committee 211 (1993) Google Scholar

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