Behaviour of sand–clay mixtures for road pavement subgrade

Autor: Ali Firat Cabalar, Waleed Sulaiman Mustafa
Přispěvatelé: HKÜ, 0- Bölüm Yok, HKÜ, Mühendislik Fakültesi, İnşaat Mühendisliği Bölümü
Rok vydání: 2015
Předmět:
Zdroj: International Journal of Pavement Engineering. 18:714-726
ISSN: 1477-268X
1029-8436
DOI: 10.1080/10298436.2015.1121782
Popis: Materials forming sand grains and colluvial soil deposits have a distinct structure, consisting of a composite matrix of coarse and fine soil grains. The influence of sand grains content on the behaviour of sand–clay mixtures was investigated by a series of intensive laboratory experiments. The California bearing ratio (CBR), unconfined compression strength (UCS) and compaction tests were carried out on various contents of sand and clay mixtures. The sand–clay mixtures were prepared with sand contents of 0, 10, 20, 30, 40, and 50% by weight. The laboratory tests on these mixtures have indicated that their behaviour will depend on the relative concentration of the sand and clay samples. The results of the tests showed a decrease in the UCS, and an increase the CBR values with an increase in the amount of sand. An increase in dry unit weight and a decrease in respective moisture content by an increase in the amount of sand were observed in the compaction tests. © 2015 Taylor & Francis.
Databáze: OpenAIRE