Journal of Jilin University(Engineering and Technology Edition) ›› 2020, Vol. 50 ›› Issue (2): 589-593.doi: 10.13229/j.cnki.jdxbgxb20180660

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Test on road performance of soils stabilized by sisal fiber and ionic soil stabilizer with cement

Wen-ting DAI(),Ze-hua SI,Zhen WANG,Qi WANG   

  1. College of Transportation, Jilin University, Changchun 130022, China
  • Received:2018-06-22 Online:2020-03-01 Published:2020-03-08

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Abstract:

In order to investigate solidification effect to coarse-grained soil in Changchun by sisal fiber and ionic soil stabilizer with cement, Sisal fiber cement reinforced soil sample was prepared in which the fiber content is 0.6%, fiber length is 1 cm, stabilizer content is 0.03%, and cement content is 5%. The tests on the road performance indexes, such as the unconfined compressive strength, indirect tensile strength, frost stability, etc., are carried out systematically. Experimental results indicate that the soil stabilized by sisal fiber and ionic soil stabilizer with cement has high early stage strength, well flexure-tension resistant performance and well frost stability. Such sisal fiber cement reinforced soil is especially suitable for Changchun and any other regions where the climate and sorts of soil are similar.

Key words: road engineering, sisal fiber, ironic soil stabilizer, road performance, unconfined compressive strength, freeze-thaw cycles

CLC Number: 

  • U414

Fig.1

Compacting experimental curve"

Table 1

Data of unconfined compressive strength"

纤维掺量/%水泥掺量/%固化剂掺量/%龄期/d无侧限抗压强度/MPa
50.60.0372.080
50.60.03283.166
50.60.03903.800

Fig.2

Trend of unconfined compressive strength"

Table 2

Data of cleavage strength"

纤维掺量/%水泥掺量/%固化剂掺量/%龄期/d劈裂强度/MPa
50.60.0370.217
50.60.03280.276
50.60.03900.354

Fig.3

Trend of cleavage strength"

Table 3

Data of freeze-thaw cycle experiment"

养生龄期/d冻融次数检验强度/MPa冻后强度/MPa强度损失/%
2812.6932.40110.8
2832.6932.20118.3
2852.6932.12421.1

Fig.4

Data of unconfined compressive strength by different freeze-thaw cycles"

Table 4

Unconfined compressive strength of water stability"

养生龄期/d浸水天数/d检验强度/MPa抗压强度/MPa强度损失/%
712.1001.71618.3
732.1001.74816.8
752.1001.83712.5

Fig.5

Unconfined compressive strength contrast of water stability"

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