Microscopic analysis of paste and aggregate distresses in pervious concrete in a wet, hard freeze climate

Vancura, Mary; Macdonald, Kevin; Khazanovich, Lev

doi:10.1016/j.cemconcomp.2011.05.011

Cited by 49 publications

(21 citation statements)

References 8 publications

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“…Slika 4. Tipičan poprečni presek sistema propusnog betona od elemenata sa žljebovima za spajanje [25] Figure 4. Typical cross-section of permeable interlocking concrete pavement [25] Slojevi sistema tipičnog poprečnog preseka propusnog betona sa žljebovima za spajanje na slici 4, odozgo na dole su: elementi od propusnog betona sa žljebovima za spajanje, propusni materijal između napred navedenih elemenata, posteljica od krupnog agregata, rezervoar od krupnog agregata u osnovnom sloju, rezervoar od krupnog agregata u sloju ispod osnovnog (sa cevi za odvodnjavanje, ako je potrebno), geotehnički materijal (opcionalno) i tlo.…”

Section: Permeable Interlocking Concrete Pavementsunclassified

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Environmental importance, composition and properties of pervious concrete

Topličić–Ćurčić¹,

Grdić²,

Ristić³

et al. 2016

Gra mat konstru

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Section: Permeable Interlocking Concrete Pavementsunclassified

“…kišnice [39,40,41]. 4. When porous concrete is correctly designed, it can have compressive strength higher than 50 MPa, hydraulic conductivity higher than 1 mm/s and the required frost resistance.…”

Section: Zaključcimentioning

confidence: 99%

Environmental importance, composition and properties of pervious concrete

Topličić–Ćurčić¹,

Grdić²,

Ristić³

et al. 2016

Gra mat konstru

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“…During the freezing/thawing cycles, the pore water changes into ice, and these ices can displace sandy soil particles, disrupting the interlocking of sandy soil particles, dilating the pore volume, and increasing microcracks' size. However, the increased pore volume and propagation of microcracks through the interfacial transition zone between paste and aggregates cannot fully recover due to the existence of cohesion in sandy soil particles at the time that the ices melt [36,37]. erefore, the cyclic thawing/freezing process can reduce the compressive strength and weight of the brick specimens.…”

Section: Bulk Density Of the Un Red Bricksmentioning

confidence: 99%

Utilization of Sandy Soil as the Primary Raw Material in Production of Unfired Bricks

Tao

Pan

Qiao

et al. 2018

Advances in Materials Science and Engineering

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In this study, attempts were made to use sandy soil as the main raw material in making unfired bricks. e sprayed-cured brick specimens were tested for compressive and flexural strength, rate of water absorption, percentage of voids, bulk density, freezing/thawing, and water immersion resistance. In addition, the microstructures of the specimens were also studied using scanning electron microscope (SEM) and X-ray diffraction (XRD) technique. e test results show that unfired brick specimens with the addition of ground-granulated blast-furnace slag (GGBS) tend to achieve better mechanical properties when compared with the specimens that added cement alone, with GGBS correcting particle size distribution and contributing to the pozzolanic reactions and the pore-filling effects. e test specimens with the appropriate addition of cement, GGBS, quicklime, and gypsum are dense and show a low water absorption rate, a low percentage of voids, and an excellent freezing/thawing and water immersion resistance. e SEM observation and XRD analysis verify the formation of hydrate products C-S-H and ettringite, providing a better explanation of the mechanical and physical behavior and durability of the derived unfired bricks. e results obtained suggest that there is a technical approach for the high-efficient comprehensive utilization of sandy soil and provide increased economic and environmental benefits.

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“…al., [22] in another study. As a result of the investigation, it is found out that freeze/thaw distresses were the suspected cause of a majority of the subsurface cracks due to the similarity of the cracking patterns in the previous concrete to cracking patterns in conventional concrete that were caused by freeze/thaw damage.…”

Section: Introductionmentioning

confidence: 99%