Properties of Ceramic Waste Powder-Based Geopolymer Concrete

The use of abundantly available wastes such as Fly ash and ceramic powder in construction industry in the form of geopolymer concrete turns out to be the search of a very promising building material for a sustainable future[15].This study has been undertaken to investigate the strength and durability properties of geopolymer concrete by adding ceramic powder in different percentage as source material in addition with flyash[16]. All investigations are mainly focused towards geopolymer concrete mainly with flyash as source material. In this study, ceramic waste powder is added since it is also one of the major waste material as flyash. Nowadays, almost all the construction are carried out with ceramic products which results with more ceramic waste powder. Thus this work focused to utilize this waste powder into geopolymer concrete. Characteristic strength and primary durability properties are carried out by adding ceramic powder with 50%,40% and30% with fly ash. Thus this paper focuses on varying the proportions of fly ash and ceramic waste powder (50:50, 60:40, 70:30) in geopolymer concrete incorporating with polypropylene fibres in percentage of 0.5%,0.75% and 1% in volume of concrete to evaluate its strength and durability characteristics. The alkaline activator solution used is a mixture of 10 molar Sodium hydroxide and Sodium silicate in the ratio 1:3. Ambient curing condition is applied for the specimens. M-Sand is used instead of fine aggregate, since many literature reveals addition of M-Sand gains more strength in geopolymer Concrete.

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CERAMIC WASTE POWDER: AN ALTERNATIVE INGREDIENT FOR GREEN CONCRETE

Proceedings of International Structural Engineering and Construction ◽

10.14455/isec.res.2017.209 ◽

2017 ◽

Vol 4 (1) ◽

Author(s):

Sama Aly ◽

Dima Kanaan ◽

Amr El-Dieb ◽

Mahmoud Reda Taha ◽

Samir Abu-Eishah

Keyword(s):

Partial Replacement ◽

Strength Development ◽

Geopolymer Concrete ◽

Ceramic Tiles ◽

Conventional Concrete ◽

Green Concrete ◽

Cement Replacement ◽

Ceramic Waste ◽

Structural Applications ◽

Alternative Ingredient

Producing "greener" concrete that meets various construction/industrial needs will have significant positive impacts on both the construction field and the environment. This paper investigates the use of ceramic waste powder (CWP); a waste material from the final polishing process of ceramic tiles, in producing different concrete types; conventional concrete (CV), self-compacting concrete (SCC), and geopolymer concrete. The conducted study highlights the feasibility of using CWP as a cement replacement in producing conventional concrete, as a filler and cement replacement in making SCC, and as a main binder in developing geopolymer concrete. The study signifies the promising opportunities of utilizing CWP as an alternative ingredient in producing green concrete. Different concrete mixtures were prepared and tested for various properties: slump retention for conventional concrete, flowability, passing ability, segregation resistance and viscosity for judging fresh properties of SCC. Strength development for all three concrete types, chloride ion permeability for evaluating the durability characteristics of conventional and SCC, in addition to resistivity test for the produced geopolymer. Results indicated that CWP can be used 10-30% as partial replacement of cement in CV, and 40% in SCC for producing concrete with acceptable fresh and hardened properties. While for the geopolymer a main conclusion was the use of alkali activating solutions with a concentration of 12M to obtain compressive strength for structural applications.

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Performance Of Geopolymer Concrete Under Various Curing Conditions

International Journal of Scientific Research ◽

10.15373/22778179/mar2013/57 ◽

2012 ◽

Vol 2 (3) ◽

pp. 178-180 ◽

Cited By ~ 1

Author(s):

Shankar H Sanni ◽

◽

Dr. R. B. Khadiranaikar Dr. R. B. Khadiranaikar

Keyword(s):

Geopolymer Concrete ◽

Curing Conditions

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Study of Natural Minerals of U-Ryrochlore-Type Structure as Analogues of Plutonium Ceramic Waste-form

MRS Proceedings ◽

10.1557/proc-713-jj2.2 ◽

2002 ◽

Vol 713 ◽

Cited By ~ 1

Author(s):

Roman V. Bogdanov ◽

Yuri F. Batrakov ◽

Elena V. Puchkova ◽

Andrey S. Sergeev ◽

Boris E. Burakov

Keyword(s):

Chemical Shifts ◽

Pyrochlore Structure ◽

Type Structure ◽

Waste Form ◽

X Ray ◽

Ceramic Waste ◽

Natural Minerals ◽

The Us ◽

Pyrochlore Type

ABSTRACTAt present, crystalline ceramic based on titanate pyrochlore, (Ca,Gd,Hf,Pu,U)2Ti2O7, is considered as the US candidate waste form for the immobilization of weapons grade plutonium. Naturally occuring U-bearing minerals with pyrochlore-type structure: hatchettolite, betafite, and ellsworthite, were studied in orders to understand long-term radiation damage effects in Pu ceramic waste forms. Chemical shifts (δ) of U(Lδ1)– and U(Lβ1) – X-ray emission lines were measured by X-ray spectrometry. Calculations were performed on the basis of a two-dimensional δLá1- and δLδ1- correlation diagram. It was shown that 100% of uranium in hatchettolite and, probably, 95-100% of uranium in betafite are in the form of (UO2)2+. formal calculation shows that in ellsworthite only 20% of uranium is in the form of U4+ and 80% of the rest is in the forms of U5+ and U6+. The conversion of the initial U4+ ion originally occurring in the pyrochlore structure of natural minerals to (UO2)2+ due to metamict decay causes a significant increase in uranium mobility.

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