Study on the effect of porosity on crack propagation

Saravanan, V.; Sachin, S.; Ramesh, K.

doi:10.1016/j.matpr.2019.12.306

Cited by 6 publications

(2 citation statements)

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“…Excessive porosity may have affected the geometric deformations in the finished product and the formation of cracks around the edges 20,41,42 . The retrograding mechanical data and increased water absorption were explained by the reduction in the integrated filling efficiency of the voids between the aggregate quartz particles by dual components at higher MD percentages 7,8,42,43 …”

Section: Resultsmentioning

confidence: 99%

“…20,41,42 The retrograding mechanical data and increased water absorption were explained by the reduction in the integrated filling efficiency of the voids between the aggregate quartz particles by dual components at higher MD percentages. 7,8,42,43 The slab prepared with 100 wt% MD as filler was measured to have a considerably low water absorption rate (.0050%) closer to that of a reference quartz composite slab (.0035%). However, any improvement in mechanical properties did not occur as compared with the case of 75 wt% MD, where the water absorption rate was .0274 wt%.…”

Section: Raw Mixture Application In Slab Productionmentioning

confidence: 93%

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Phase variation and mechanical properties of waste calcium carbonate to substitute quartz in composite slab production

Baş¹,

Güler

Özer

et al. 2023

Int J Applied Ceramic Tech

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Owing to the fast‐emerging nature and rapid advancements in the construction industry, huge volumes of marble dust (MD) are generated as reject during slab cutting in marble processing, causing significant environmental hazards. Nowadays, quartz composite slabs have increasingly been preferred in building works due to their excellent hygienic property and mechanical strength. Composite slab is produced using micronized quartz as filler, the grinding of which is an energy‐intensive process. Substitution of micronized quartz with MD at different percentages was investigated in natural form and after roasting. Natural MD offered appreciable physical properties closer to those of a quartz composite slab. Physical properties slightly retrograded by quartz supplementation in the raw form. Roasting the filler led to the formation of rounded Ca–silicate. Wollastonite was the first phase formed after sintering at the lowest MD percentage and shortest roasting times. Larnite became dominating phase first by increasing MD percentage and roasting time, and then calcio‐olivine formed. Physical characterization test results demonstrated that hardnesses of new phase and particle shape were the key parameters that improved slabs’ mechanical properties of. Hard rounded larnite particles improved mechanical behavior of slabs having the synergic effect of quartz, whereas wollastonite did not show a significant effect.

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Section: Resultsmentioning

confidence: 99%