Durability and shrinkage performance of self-compacting concrete containing recycled fine clay brick aggregate

Ge, Zhi; Feng, Yujie; Yuan, Huaqiang; Zhang, Hongzhi; Sun, Renjuan; Zheng, Wang

doi:10.1016/j.conbuildmat.2021.125041

Cited by 26 publications

(9 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As shown in Table 2 , two series of foamed concrete with different LM–FA dosages and target wet densities were designed. Different from normal concrete, the water to binder ratio (w/b) is no longer a major parameter for the strength development of foamed concrete [ 4 , 38 ]. Therefore, a fixed w/b ratio of 0.55 was used to ensure the stability and workability of the mixture.…”

Section: Methodsmentioning

confidence: 99%

A Feasibility Study of Low Cement Content Foamed Concrete Using High Volume of Waste Lime Mud and Fly Ash for Road Embankment

Li¹,

Yuan

Fa-liang

et al. 2021

Materials

Self Cite

View full text Add to dashboard Cite

This paper aims to study the feasibility of low cement content foamed concrete using waste lime mud (LM) and fly ash (FA) as mineral additives. The LM/FA ratio was first optimized based on the compressive strength. Isothermal calorimetry test, ESEM, and XRD were used to investigate the role of LM during hydration. Afterward, the optimized LM/FA ratio (1/5) was used to design foamed concrete with various wet densities (600, 700, 800 and 900 kg/m3) and LM–FA dosages (0%, 50%, 60%, 70% and 80%). Flowability measurements and mechanical measurements including compressive strength, flexural strength, splitting strength, elastic modulus, and California bearing ratio were conducted. The results show that the foamed concretes have excellent workability and stability with flowability within 170 and 190 mm. The high alkalinity of LM accelerated the hydration of FA, thereby increasing the early strength. The significant power functions were fitted for the relationships between flexural/splitting and compressive strength with all correlation coefficients (R2) larger with 0.95. The mechanical properties of the foamed concrete increased with the density increasing or LM–FA dosage decreasing. The compressive strength, tensile strength, CBR of all prepared foamed concretes were higher than the minimum requirements of 0.8 and 0.15 MPa and 8%, respectively in the standard.

show abstract

Section: Methodsmentioning

confidence: 99%

A Feasibility Study of Low Cement Content Foamed Concrete Using High Volume of Waste Lime Mud and Fly Ash for Road Embankment

Li¹,

Yuan

Fa-liang

et al. 2021

Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…For the basic mechanical properties of the research shows that [33][34][35][36] polypropylene crude fiber on the compressive strength of concrete will play a certain role in enhancing, but the impact is not great. Concrete tensile strength and flexural strength will get a greater enhancement, and there is an optimal mixing of polypropylene fibers, with the increase in fiber dosage, the enhancement effect first increased and then decreased.…”

Section: Current Research Status Of Polypropylene Rough Fiber Concretementioning

confidence: 99%

Review of Fracture Properties and Research Methods of Fiber Recycled Concrete

Tong

2024

AJST

View full text Add to dashboard Cite

Aiming at the background of the application of fracture mechanics in fiber recycled concrete as well as the shortcomings of the current research, the relevant results and progress are summarized from three aspects, namely, the basic theory of fracture mechanics of fiber recycled concrete and the research progress of the fracture properties of fiber recycled concrete as well as the testing methods of the fracture of fiber recycled concrete, respectively. The development history of the application of fracture mechanics in concrete is described, three fracture forms, fracture process zones and three softening curve models of concrete are introduced, and it is proposed to combine the bilinear softening curve and the virtual crack zone model to construct the ontological relationship of the whole process of concrete cracking. The current research status of recycled brick aggregate concrete and polypropylene coarse fiber concrete is introduced. The incorporation of recycled brick aggregate adversely affects the workability, basic mechanical properties and fracture properties of concrete. The reinforcing effect of polypropylene fibers on concrete can effectively improve the adverse effects of brick aggregate on concrete, which opens up the research prospect of green concrete and has high research value. The applications of three-point bending test, four-point bending test and DIC technique in the study of concrete fracture characteristics are introduced.

show abstract

“…Ge et al [32] investigated the chloride ion penetration resistance of SCC made with RBS. The results indicated that the use of RBS reduced the chloride ion penetration resistance.…”

Section: Chloride Resistancementioning

confidence: 99%

“…Ge et al [32] investigated the freeze-thaw resistance of SCC made with RBS. The results showed that the incorporation of RBS decreased the freeze-thaw resistance of SCC.…”

Section: Freeze-thaw Resistancementioning

confidence: 99%

See 1 more Smart Citation

Performance and durability of self-compacting mortar with recycled sand from crushed brick

Zhao¹,

Duan²,

Hubert³

et al. 2022

Journal of Building Engineering

View full text Add to dashboard Cite

Durability and shrinkage performance of self-compacting concrete containing recycled fine clay brick aggregate

Cited by 26 publications

References 43 publications

A Feasibility Study of Low Cement Content Foamed Concrete Using High Volume of Waste Lime Mud and Fly Ash for Road Embankment

A Feasibility Study of Low Cement Content Foamed Concrete Using High Volume of Waste Lime Mud and Fly Ash for Road Embankment

Review of Fracture Properties and Research Methods of Fiber Recycled Concrete

Performance and durability of self-compacting mortar with recycled sand from crushed brick

Contact Info

Product

Resources

About