Criteria to Be Considered in the Selection of Building Materials for Sustainable Housing Delivery

Alabi, Bimpe; Fapohunda, Julius Ayodeji

doi:10.1007/978-3-030-26528-1_41

Cited by 1 publication

(1 citation statement)

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“…Cement production accounts for a significant portion of global CO 2 emissions, primarily due to the calcination of limestone and the energy-intensive processes involved. This increased CO 2 output exacerbates the greenhouse effect, leading to further climate changing impacts and air pollution [5]. In this context, the concept of sustainability emerges as a guiding principle for mitigating and resolving environmental concerns.…”

Section: Introductionmentioning

confidence: 99%

Effect of Adding Phragmites-Australis Fiber on the Mechanical Properties and Volume Stability of Mortar

Khatib,

Ramadan,

Ghanem

et al. 2024

Fibers

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In this research, the investigation focuses on the influence of Phragmites-Australis (PA) fibers on the mechanical properties and volume stability of mortar. A total of four mixtures were employed with varying amounts of locally sourced PA fibers ranging from 0.5% to 2% (by volume). Testing includes flexural strength, compressive strength, chemical shrinkage, drying shrinkage, autogenous shrinkage, and expansion. The findings show that the use of PA fibers caused a reduction in compressive and flexural strength. However, beyond 3 days of curing, an increase in flexural strength ranging from 7 to 21% was observed at 1% PA fiber compared to the control sample. Furthermore, the addition of PA fibers up to 2% effectively mitigates the dimensional stability of mortar samples. A gradual decrease in chemical, autogenous, and drying shrinkage as well as expansion occurs in mortar samples when % of PA fibers increases. At 180 days, this reduction was 37, 19, 15 and 20% in chemical shrinkage, autogenous shrinkage, drying shrinkage, and expansion, respectively, for a mix containing 2% PA fiber. Additionally, a hyperbolic model is proposed to predict the variation of length change with time. Also, a strong relationship is observed between chemical shrinkage and other length change parameters. Consequently, the environmentally friendly utilization of PA fibers demonstrates its potential to significantly enhance mortar durability in construction applications.

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Section: Introductionmentioning

confidence: 99%