Sökning: onr:"swepub:oai:research.chalmers.se:c1c73ea4-7619-4b17-969e-2af77c746af3" >
Alkali-activated bi...
Alkali-activated binders based on incinerator bottom ash combined with limestone-calcined clay or fly ash
-
- Liu, Jun (författare)
- Shenzhen University
-
- Liang, Zhen (författare)
- Shenzhen University
-
- Jin, Hesong (författare)
- Shenzhen University
-
visa fler...
-
- Kastiukas, Gediminas (författare)
- Shenzhen University
-
- Tang, Luping, 1956 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Xing, Feng (författare)
- Shenzhen University
-
- Ren, Jie (författare)
- University of Melbourne,Shenzhen University
-
visa färre...
-
(creator_code:org_t)
- Elsevier BV, 2022
- 2022
- Engelska.
-
Ingår i: Construction and Building Materials. - : Elsevier BV. - 0950-0618. ; 320
- Relaterad länk:
-
https://research.cha...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- This study investigates the feasibility of improving the properties of alkali-activated bottom ash (AABA) binders by incorporating limestone-calcined clay (LC2) or fly ash (FA) with the aim of treating and utilising bottom ash in a large-scale as a potential resource for construction materials. Experimental results revealed that increasing the substitution with LC2 or FA in the AABA binders increased both the compressive strength and the immobilization capacity of heavy metal when compared to the pure AABA binders. Given a Na2O content of 5%, the compressive strength of the AABA binder with 30% bottom ash substituted by FA was almost 200% higher than that of the pure AABA binder. However, further increase in the Na2O dosage did not necessarily lead to higher compressive strength, which was found to be controlled by the volume fraction of air voids and large pores. When greater Na2O dosages were employed, i.e., 6 % and 7 %, LC2 was found to be more useful in improving the properties of AABA binders than FA. Furthermore, the substitution of bottom ash with FA resulted in the formation of N-A-S-H gels, whereas the substitution with LC2 led to the formation of more C-A-S-H gels. Finally, the immobilization capacity appeared to be influenced by many factors, such as hydration products, capillary pores and different types of heavy metals.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik -- Biomaterial (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology -- Bio Materials (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
Nyckelord
- Mechanical properties
- Municipal incinerator bottom ash
- Limestone-calcined clay (LC2)
- Heavy-metal immobilization
- Alkali-activated binders
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas