نوع مقاله : مقاله پژوهشی
نویسندگان
1 Iran university of science and technology
2 دانشگاه علم و صنعت ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
This study evaluates the performance of Persian gum as a new plant-based biopolymer in reducing the permeability of the Hormuz car-bonate sand and the Firouzkooh silicate sand. To achieve this objec-tive, constant head permeability tests were conducted on both un-treated and Persian gum-treated sand specimens. Various parame-ters, including the proportion of additive biopolymer, curing loca-tion, curing time and initial soil density, were investigated. The re-search findings revealed that the introduction of 0.5% and 3% Per-sian gum resulted in a substantial reduction in permeability, with re-ductions of approximately 3-fold and 190-fold, respectively, depend-ing on the sand type. These reductions were observed subsequent to a 7-day curing regimen conducted under elevated temperatures. Ad-ditionally, it was observed that other parameters, notably initial soil density, curing temperature, and curing duration, exerted a signifi-cant and direct influence on the reduction in soil permeability. In particular, the permeability coefficient of the Hormuz and Firouzkooh optimum samples, treated with a 3% concentration of Persian gum and possessing a relative soil density of approximately 80% prior to treatment, demonstrated a significant reduction to approximately 6.65 × 10E-6 and 7.7 × 10E-6 cm/s, respectively, following an ex-tended 28-day curing period at an elevated temperature. This notable decrease, in comparison to analogous untreated samples, represent-ed a 578-fold and 175-fold reduction in permeability, respectively.
کلیدواژهها [English]
)
ارسال نظر در مورد این مقاله