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Recycling of concrete waste to produce ready-mix alkali activated cement
- Source :
- Ceramics International. 44:7300-7304
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- The goal of this study is to produce an environmentally, and user friendly ready-mix alkali activated cement (RM-AAC) by thermal activation of concrete waste (CW) in the presence of sodium hydroxide (NaOH). Two major compositional factors, which play an important role in the performance of RM-AAC, i.e. temperature and NaOH percentage, were investigated. The CW showed high stability under thermal treatment up to 1200 °C; meanwhile it can be converted to distorted structure with high amorphicity in the presence of appropriate NaOH content. RM-AAC powder can react with water, forming hardened material with an acceptable compressive strength. Due to the white color of RM-AAC powder, it can be beneficially used in prestige construction projects and decorative works.
- Subjects :
- Cement
Materials science
Process Chemistry and Technology
Metallurgy
0211 other engineering and technologies
02 engineering and technology
Thermal treatment
021001 nanoscience & nanotechnology
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
chemistry.chemical_compound
Compressive strength
chemistry
Sodium hydroxide
021105 building & construction
Materials Chemistry
Ceramics and Composites
Alkali activated
0210 nano-technology
Subjects
Details
- ISSN :
- 02728842
- Volume :
- 44
- Database :
- OpenAIRE
- Journal :
- Ceramics International
- Accession number :
- edsair.doi...........561beeadcc4818faa6d2668390163606