The particle-size effect of waste clay brick powder on its pozzolanic activity and properties of blended cement

Zhao, Yasong; Gao, Jianming; Liu, Chuanbei; Chen, Xuemei; Xu, Zhenhai

doi:10.1016/j.jclepro.2019.118521

Cited by 253 publications

(75 citation statements)

References 51 publications

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“…The enhancement in the strength of specimens containing WBBP up to 10% and HL can be attributed to the pozzolanic reaction [ 54 ], better pore refinement [ 18 ], and filler effects [ 85 ]. However, the reduced early-age strength of C80 was due to the high replacement percentage of cement with WBBP [ 86 , 87 ]. The high percentage of cement replacement with pozzolans slows down the pozzolanic action due to the unavailability of sufficient calcium hydroxide at the early age of hydration of cement [ 66 ].…”

Section: Resultsmentioning

confidence: 99%

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Utilization of Solid Waste from Brick Industry and Hydrated Lime in Self-Compacting Cement Pastes

et al. 2021

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The huge amount of solid waste from the brick manufacturing industry can be used as a cement replacement. However, replacement exceeding 10% causes a reduction in strength due to the slowing of the pozzolanic reaction. Therefore, in this study, the pozzolanic potential of brick waste is enhanced using ultrafine brick powder with hydrated lime (HL). A total of six self-compacting paste mixes were studied. HL 2.5% by weight of binder was added in two formulations: 10% and 20% of waste burnt brick powder (WBBP), to activate the pozzolanic reaction. An increase in the water demand and setting time was observed by increasing the replacement percentage of WBBP. It was found that the mechanical properties of mixes containing 5% and 10% WBBP performed better than the control mix, while the mechanical properties of the mixes containing 20% WBBP were found to be almost equal to the control mix at 90 days. The addition of HL enhanced the early-age strength. Furthermore, WBBP formulations endorsed improvements in both durability and rheological properties, complemented by reduced early-age shrinkage. Overall, it was found that brick waste in ultrafine size has a very high degree of pozzolanic potential and can be effectively utilized as a supplementary cementitious material.

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Section: Resultsmentioning

confidence: 99%

“…The higher the contribution ability of SCM in strength, the greater the pozzolanic potential [ 88 ]. Previous researchers’ works suggested that WBBP is a good SCM due to its pozzolanic properties [ 86 , 87 , 89 ]. It can also be seen in Figure 13 that the relative strength index of WBBP formulations at all ages is greater than 0.9.…”

Section: Resultsmentioning

confidence: 99%

Utilization of Solid Waste from Brick Industry and Hydrated Lime in Self-Compacting Cement Pastes

et al. 2021

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“…Besides, the economic and environmental benefits of CBP preparation are higher than that of cement preparation [54]. The previous findings report that the energy consumption, CO 2 emission and cost of cement production are respectively 5.5 MJ/kg, 0.930 kg/kg, and 500 RMB/ton, and the results are 0.1-1.2 MJ/k, 0.028-0.333 kg/kg, and 30-330 RMB/ton for the preparation of RBP with various particle sizes [55]. Therefore, the CBP is an eco-friendly recycled material, and the utilization of CBP in SHCC preparation has excellent economic and environmental benefits.…”

Section: Flexural Strength Of Shcc When Using Rbp To Replace Fly Ash mentioning

confidence: 92%

Using Eco-Friendly Recycled Powder from CDW to Prepare Strain Hardening Cementitious Composites (SHCC) and Properties Determination

Wang

et al. 2020

Materials

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Using eco-friendly recycled brick powder (RBP) derived from waste brick to prepare strain hardening cementitious composites (SHCC) provides a new way of recycling the construction and demolition waste (CDW), and the dosage of cement in SHCC can be decreased. This paper investigated the micro-properties and mechanical properties of SHCC containing RBP by a series of experiments. The results showed that RBP had typical characteristics of supplementary cementitious material (SCM). The addition of RBP increased the SiO2 content and decreased the hydration products in cementitious materials; in this case, the mechanical properties of mortar decreased with increasing RBP replacements, and a linear relationship was observed between them. It was noticed that the adverse effect of RBP on the mechanical properties decreased with increasing PVA fiber content in mortar. For SHCC containing various RBP replacements, the ultimate load increased, and the ultimate displacement decreased with increasing curing days. When using RBP to replace cement by weight, the ultimate displacement increased with the addition of RBP. Meanwhile, there was no significant reduction in the ultimate load of SHCC. When using RBP to replace fly ash (FA) by weight, the incorporation of RBP decreased the ultimate displacement of SHCC, whereas the ultimate load was improved. For example, the ultimate load and displacement of SHCC with 54%RBP were 17.6% higher and 16.4% lower, respectively, than those of SHCC with 54% FA.

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“…With regard to the different manufacturing protocols for the three particle size distributions of brick fines, a difference in energy consumption was noted [19]. The energy used to produce the B1 brick fines (0.15 MJ/kg) is higher than that for cement powder (0.13 MJ/kg).…”

Section: Environmental Considerationsmentioning

confidence: 99%

“…The addition of silicate materials in the form of brick fines results in a minor loss of strength but would increase durability performances; these results are due to the pozzolanic properties of the brick fines [6,9,[12][13][14][15][16][17]. Low substitution rates with different particle sizes are possible; studies are pointing out a specific contribution of these fines in a hydraulic binder [12,[18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Alternative hydraulic binder development based on brick fines: Influence of particle size and substitution rate

Grellier

Bulteel

Bouarroudj

et al. 2021

Journal of Building Engineering

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Brick waste is produced in large quantities by the civil engineering sector without any real valorization. One way of valorizing this material consists in incorporating brick fines in cement. The substitution of clinker with this material produces an alternative hydraulic binder. In addition to the reduction in cost and energy saving, blended cement based on brick fines would present the advantage to improve the environmental impact of cement production by reducing its CO2 emission. Therefore, the aim of this paper is to study the use of bricks fines in cement, focusing more specifically on the impact of the size of their particles on fresh and hardened cement paste properties. Potential pozzolanic activity of the three brick fines was investigated as well as its influence on the microstructure and strength of cement paste samples.The results showed that it was possible to produce blended cement based on brick fines.Substitution rates up to 20% with brick fines whose dimensions are close to those of clinker gave good performances compared to the reference cement. The brick fines clearly impact the hydration process through nucleation action and pozzolanic activity.

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The particle-size effect of waste clay brick powder on its pozzolanic activity and properties of blended cement

Cited by 253 publications

References 51 publications

Utilization of Solid Waste from Brick Industry and Hydrated Lime in Self-Compacting Cement Pastes

Utilization of Solid Waste from Brick Industry and Hydrated Lime in Self-Compacting Cement Pastes

Using Eco-Friendly Recycled Powder from CDW to Prepare Strain Hardening Cementitious Composites (SHCC) and Properties Determination

Alternative hydraulic binder development based on brick fines: Influence of particle size and substitution rate

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