Waste ceramic powder as a pozzolanic supplementary filler of cement for developing sustainable building materials

Li, Le; Liu, Wenfeng; You, Qinxi; Chen, Mengcheng; Zeng, Qiang

doi:10.1016/j.jclepro.2020.120853

Cited by 101 publications

(28 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, this crude use of waste ceramics needs to be further improved. Li [22] found that waste ceramic powder can refine pores when added to concrete instead of cement. In addition, the activated alumina and silica in the waste ceramic powder dissolve in the pore solution and form a new calcium aluminosilicate hydrate (C-A-S-H) with the active ions (Ca 2+ and OH -).…”

Section: Introductionmentioning

confidence: 99%

Effect of Waste Ceramic Powder on the Properties of Alkali–Activated Slag and Fly Ash Pastes Exposed to High Temperature

et al. 2021

View full text Add to dashboard Cite

This paper presents the effects of alkali-activated blast furnace slag and fly ash (AASF) paste added with waste ceramic powder (WCP) on mechanical properties, weight loss, mesoscopic cracks, reaction products, and microstructure when exposed to 300, 600, and 900 °C. Using waste ceramic powder to replace blast furnace slag and fly ash, the replacement rate was 0–20%. The samples cured at 45 °C for 28 days were heated to 300, 600, and 900 °C to determine the residual compressive strength and weight loss at the relevant temperature. We evaluated the deterioration of the paste at each temperature through mesoscopic images, ultrasonic pulse velocity (UPV), thermogravimetric analysis (TG), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), and with a scanning electron microscope (SEM). Relevant experimental results show that: (1) with the increase in waste ceramic powder content, the compressive strength of samples at various temperatures increased, and at 300 °C, the compressive strength of all the samples reached the highest value; (2) the residual weight increased with the increase in the content of the waste ceramic powder; (3) with a further increase in temperature, all the samples produced more mesoscopic cracks; (4) at each temperature, with the rise in waste ceramic powder content, the value of the ultrasonic pulse velocity increased; (5) the TG results showed that, as the content of waste ceramic powder increased, the formation of C-A-S-H gel and hydrotalcite decreased; (6) XRD and FTIR spectra showed that, at 900 °C, the use of waste ceramic powder reduced the formation of harmful crystalline phases; (7) the SEM image showed that, at 900 °C, as the content of waste ceramic powder increased, the compactness of the sample was improved. In summary, the addition of waste ceramic powder can improve the mechanical properties of the alkali-activated paste at high temperatures, reduce the occurrence of cracks, and make the microstructure denser.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Waste Ceramic Powder on the Properties of Alkali–Activated Slag and Fly Ash Pastes Exposed to High Temperature

et al. 2021

View full text Add to dashboard Cite

show abstract

“…In mortars made with ornamental rocks, pozzolanic activity was not found as in the reference mortar [ 46 ]. Despite the founding of the pozzolanic reaction when ceramic filler was incorporated [ 47 ], authors such as Zhao et al [ 28 ] obtained a decrease when incorporating ceramic filler in mortars, with respect to reference mix. Regardless of the absence of SiO 2 in RF, it has been reported that dolomite can reduce the nucleation barrier, enhancing the hydration process [ 40 ].…”

Section: Resultsmentioning

confidence: 99%

Performance of Sustainable Mortars Made with Filler from Different Construction By-Products

et al. 2022

View full text Add to dashboard Cite

One way to contribute to sustainability in the construction sector is through the incorporation of construction by-products from their own activities. This work intends to extend the possibilities for enhancement of these by-products through the incorporation of four different ones, as fillers, in mortar production. The influence of these incorporations in mortar production was compared with a reference mortar with siliceous filler in its fresh state; workability, entrained air content and fresh density, and in its hardened state; capillary water absorption, water vapour permeability and shrinkage (up to 91 days); and adhesive, compressive, and flexural strength; the last two were studied over time (up to 180 days). Despite the reduction in compressive strength, both in the short and long term, there was a gain in adhesive strength when the construction by-products were incorporated. Regarding the physical properties and durability studied, no relevant differences were found with respect to the reference mortar. According to the European Specifications, these mortars could be used as regular or coloured rendering and plastering mortars, and masonry mortars, and these findings promote the circular economy in the construction sector.

show abstract

“…The raw materials of ceramic products are clay, quartz and feldspar, which are then fired at high temperature to form a CP after grinding [ 22 ]. Others [ 23 ] have shown by the test, after grinding to a certain degree of fineness of the CP has obvious volcanic ash effect, if at room temperature, moisture and with a certain degree of alkali environmental conditions, the later can be with Ca(OH) 2 secondary hydration reaction, thus generating a large number of C-S-H and C-A-H and other substances with a certain degree of cementation, and hardening to produce strength, and it has been demonstrated that CP has no significant positive effect on the early strength development of cement mortar. It mainly acts as a microfiller, resulting in a low early strength of cement mortar.…”

Section: Introductionmentioning

confidence: 99%

Study on Properties and Optimization of Ternary Auxiliary Cementing Materials for IOTs

Zhang

et al. 2022

Materials

View full text Add to dashboard Cite

In order to control energy consumption and reduce pollution, the use of supplementary cementitious materials (SCMs) instead of cement to produce green cementitious materials can save energy, reduce emissions and achieve sustainable development. This study demonstrates the possibility of developing SCMs with iron tailings (IOTs), fly ash (FA) and ceramic powder (CP) ternary system, as well as the optimization and improvement scheme of gelation activation. The effects of activator dosage, mix ratio and substitution rate on mechanical properties of ternary SCMs system were investigated. The formation and evolution of hydration products were analyzed by differential thermogravimetric analysis (DTA) and scanning electron microscopy (SEM). The results of the study show that there is synergy in the system. The results show that there is synergy in the system and the hydration reaction is sufficient. At the substitution rate of 30%, the doping ratio of IOTs, CP and FA is 1:2:2 and the Ca(OH)2 is 0.6%, the strength reaches 39.9 MPa and the activity index is 91.5%, which can provide a basis for the application and more in-depth study of IOTs multi SCMs.

show abstract

Waste ceramic powder as a pozzolanic supplementary filler of cement for developing sustainable building materials

Cited by 101 publications

References 43 publications

Effect of Waste Ceramic Powder on the Properties of Alkali–Activated Slag and Fly Ash Pastes Exposed to High Temperature

Effect of Waste Ceramic Powder on the Properties of Alkali–Activated Slag and Fly Ash Pastes Exposed to High Temperature

Performance of Sustainable Mortars Made with Filler from Different Construction By-Products

Study on Properties and Optimization of Ternary Auxiliary Cementing Materials for IOTs

Contact Info

Product

Resources

About