Hydration and microstructure evolution of recycled clay brick powder-cement composite cementitious materials

Luo, Xu; Gao, Jianming; Liu, Xi; Li, Shujun; Zhao, Yasong

doi:10.1007/s10973-022-11343-2

Cited by 14 publications

(2 citation statements)

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“…In many studies, WBP was used as an SCM, replacing cement in the production of mortars and concrete [ 34 , 35 , 36 , 37 , 38 , 39 , 40 ]. In mixtures where waste concrete and brick powder are used together, the replacement ratios and particle size of powders are important when evaluating the fluidity and rheology of the mixture [ 41 ].…”

Section: Properties Of Wbp As Scm In Mortar and Concretementioning

confidence: 99%

“…The decrease in C-H content is attributed to the interaction between the reactive pozzolanic phases in WBP-containing paste specimens and C-H released during cement hydration [ 54 ]. Generally, the lower early age strengths are due to the fact that the specimen microstructure becomes less dense by increasing its porosity in the early stage due to the increase in the substitution rate since the specimen does not participate in the cement hydration reaction and no pozzolanic reaction occurs [ 40 , 45 , 55 , 56 , 57 ]. Also, curing temperature has an effect on the hydration process of cement.…”

Section: Properties Of Wbp As Scm In Mortar and Concretementioning

confidence: 99%

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Utilization of Recycled Brick Powder as Supplementary Cementitious Materials—A Comprehensive Review

Sallı Bideci,

Bideci,

Ashour

2024

Materials

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Over the past two decades, extensive research has been conducted to explore alternative supplementary cementitious materials (SCMs) in order to address the environmental concerns associated with the cement industry. Bricks, which are frequently preferred in the construction sector, generate a lot of waste during the production and demolition of existing buildings, requiring environmentally sustainable recycling practices. Therefore, many studies have been carried out in recent years on the use of brick waste as supplementary cementitious materials (SCMs) in cement mortar and concrete production. This critical review evaluates the impact of waste brick powder (WBP) on the mechanical and durability properties of mortar and concrete when used as a partial replacement for cement. It was observed that the properties of WBP-blended cement mortar or concrete depend on several factors, including WBP particle size, replacement ratio, pozzolanic activity, and mineralogical structure. The findings indicate that WBP with a particle size range of 100 µm to 25 µm, with a maximum cement replacement level of 10–20%, exhibits a positive impact on the compressive strength of both mortars and concretes. However, it is crucial to emphasize that a minimum curing duration of 28 days is imperative to facilitate the development of a pozzolanic reaction. This temporal requirement plays a vital role in realizing the optimal benefits of utilizing waste brick powder as a supplementary cementitious material in mortars and concretes.

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