Triaxial tests research on strength properties of the polypropylene fiber reinforced soil

2011 ◽  
Author(s):  
Yun-hua Yang ◽  
Sheng-guo Cheng ◽  
Jian-yun Gu ◽  
Xiang-hui Hu
Keyword(s):  
Polypropylene Fiber ◽  
Strength Properties ◽  
Reinforced Soil ◽  
Triaxial Tests ◽  
Fiber Reinforced ◽  
Fiber Reinforced Soil

Shear modeling of polypropylene-fiber-reinforced soil composite using electrical conductivity contour technique

2014 ◽  
Vol 45 (1) ◽  
pp. 133-151 ◽  
Author(s):  
Sayyed Mahdi Hejazi ◽  
Ali Reza Baghulizadeh ◽  
Masoud Nateghi ◽  
Mohammad Mardani
Keyword(s):  
Electrical Conductivity ◽  
Polypropylene Fiber ◽  
Reinforced Soil ◽  
Fiber Reinforced ◽  
Fiber Reinforced Soil ◽  
Contour Technique

Plate Load Test on Fiber-Reinforced Soil

2003 ◽  
Vol 129 (10) ◽  
pp. 951-955 ◽  
Author(s):  
Nilo C. Consoli ◽  
Michéle D. T. Casagrande ◽  
Pedro D. M. Prietto ◽  
Anto⁁nio Thomé
Keyword(s):  
Reinforced Soil ◽  
Load Test ◽  
Fiber Reinforced ◽  
Plate Load Test ◽  
Fiber Reinforced Soil

Tensile Strength of Fiber-Reinforced Soil

2016 ◽  
Vol 28 (7) ◽  
pp. 04016031 ◽  
Author(s):  
Chao-Sheng Tang ◽  
De-Yin Wang ◽  
Yu-Jun Cui ◽  
Bin Shi ◽  
Jian Li
Keyword(s):  
Tensile Strength ◽  
Reinforced Soil ◽  
Fiber Reinforced ◽  
Fiber Reinforced Soil

scholarly journals Behavior of Fiber-Reinforced and Lime-Stabilized Clayey Soil in Triaxial Tests

2019 ◽  
Vol 9 (5) ◽  
pp. 900 ◽  
Author(s):  
Yixian Wang ◽  
Panpan Guo ◽  
Xian Li ◽  
Hang Lin ◽  
Yan Liu ◽  
...  
Keyword(s):  
Wheat Straw ◽  
Clayey Soil ◽  
Coupling Effect ◽  
Fiber Reinforcement ◽  
Reinforced Soil ◽  
Triaxial Tests ◽  
Fiber Reinforced ◽  
Microscopic Mechanism ◽  
Lime Stabilization ◽  
Stabilized Soil

The beneficial role of combining fiber reinforcement with lime stabilization in altering soil behavior has been established in the literature. However, the coupling effect of their combination still remains unclear in terms of its magnitude and microscopic mechanism, especially for natural fibers with special microstructures. The objective of this study was to investigate the coupling effect of wheat straw fiber reinforcement and lime stabilization on the mechanical behavior of Hefei clayey soil. To achieve this, an experimental program including unconsolidated–undrained (UU) triaxial tests and SEM analysis was implemented. Static compaction test samples were prepared on untreated soil, fiber-reinforced soil, lime-stabilized soil, and lime-stabilized/fiber-reinforced soil at optimum moisture content with determining of the maximum dry density of the untreated soil. The lime was added in three different contents of 2%, 4%, and 6%, and 13 mm long wheat straw fiber slices with a cross section one-quarter that of the intact ones were mixed in at 0.2%, 0.4%, and 0.6% by dry weight of soil. Analysis of the derived results indicated that the addition of a small amount of wheat straw fibers into lime-stabilized soil improved the intensity of the strain-softening behavior associated with mere lime stabilization. The observed evidence that the shear strength increase brought by a combination of 0.4% fiber reinforcement and 4% lime stabilization was smaller than the summation of the shear strength increases brought by their presence alone in a sample demonstrated a coupling effect between fiber reinforcement and lime stabilization. This coupling effect was also detected in the comparisons of the secant modulus and failure pattern between the combined treatment and the individual treatments. These manifestations of the coupling effect were explained by a microscopic mechanism wherein the fiber reinforcing effect was made more effective by the ways in which lime chemically stabilized the soil and lime stabilization development was quickened by the water channels passing through the surfaces and honeycomb pores of the wheat straw fibers.

Sign in / Sign up

Export Citation Format

Share Document