Hydraulic conductivity and strength of pervious concrete for deep trench drains
| Autor: | Calogero Valore, Maurizio Ziccarelli |
|---|---|
| Přispěvatelé: | Ziccarelli, Maurizio, Valore, Calogero |
| Rok vydání: | 2019 |
| Předmět: |
Cement
Aggregate (composite) Pervious concrete Hydraulic conductivity 0211 other engineering and technologies 02 engineering and technology 010502 geochemistry & geophysics Geotechnical Engineering and Engineering Geology Residual 01 natural sciences Current (stream) Clogging Shear strength (soil) Trench drains Environmental science Geotechnical engineering Strength Computers in Earth Sciences Safety Risk Reliability and Quality 021101 geological & geomatics engineering 0105 earth and related environmental sciences |
| Zdroj: | Geomechanics for Energy and the Environment. 18:41-55 |
| ISSN: | 2352-3808 |
| DOI: | 10.1016/j.gete.2018.09.001 |
| Popis: | Pervious concrete for deep trench drains, used to stabilise slopes, must meet many requirements, namely, adequate hydraulic conductivity, adequate shear strength a few days after pouring, capacity to act as a protective filter for soils in which the drain is installed, good resistance to clogging and adequate residual hydraulic conductivity. In current engineering practice, the composition of pervious concrete for drains is improperly selected according to criteria used for no-fines concrete for road pavements. To detect more suitable and specific criteria, a laboratory investigation has been conducted aimed at identifying the composition and the properties of pervious concrete satisfying the above requirements. The results of these tests are reported in the paper. They show that it is possible to devise mix-designs of pervious concrete that satisfy all the abovementioned requirements. Special attention has been paid to the hydraulic conductivity and the strength and to their relationship to the water/cement and the aggregate/cement ratios and to the granulometric composition of the aggregates. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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