Bitumen Coating versus Plastic Sheeting for Reducing Negative Skin Friction

Tawfiq, Kamal; Caliendo, Joseph A.

doi:10.1061/(asce)0899-1561(1995)7:1(69)

Cited by 5 publications

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Different methods to mitigate the negative skin friction of piles include prepressure to reduce soil settlement when constructing a pile foundation, using a casing to avoid direct contact between the pile and soil, and using coatings such as bituminous materials to minimize the skin friction between the pile and soil [26][27][28][29][30]. e latter method is widely used and is the most cost effective.…”

Section: Introductionmentioning

confidence: 99%

Experiments on Reducing Negative Skin Friction of Piles

Feng

Zhao

et al. 2019

Advances in Civil Engineering

View full text Add to dashboard Cite

e objective of this study was to investigate the effect of different moisture contents of clay (13%, 15%, 17%, 19%, and 21%) and different coatings on the ability to reduce negative skin friction during a large-scale shear test. Four coating treatments of the concrete surface were investigated, i.e., no treatment, coating with a paraffin-oil mixture, coating with a polymer nanomaterial, and coating with paint. e results showed that when the moisture content of the clay was slightly larger than that of the plastic limit, the ability to reduce negative skin friction was the best, and the performance was similar for the paraffin-oil mixture, the polymer nanomaterial, and the paint. When the moisture content of the clay was lower than that of the plastic limit, the paraffinoil mixture provided the best performance. e position of the neutral point can be determined by different methods, and the negative skin friction of piles should be reduced by applying coatings that are most suitable to different conditions.

show abstract

Section: Introductionmentioning

confidence: 99%

Experiments on Reducing Negative Skin Friction of Piles

Feng

Zhao

et al. 2019

Advances in Civil Engineering

View full text Add to dashboard Cite

show abstract

Negative Skin Friction on Piles: State of the Art

Rituraj

Rajesh

2021

Lecture Notes in Civil Engineering

View full text Add to dashboard Cite

Model Pile Pull-Out Tests Using Polyethylene Sheets to Reduce Downdrag on Cast In Situ Piles

Suits¹,

Sheahan²,

Chow

et al. 2004

Geotechnical Testing Journal

View full text Add to dashboard Cite

Low-density polyethylene sheets (LDPE) were used in this study to investigate its effectiveness in reducing downdrag on cast in situ piles. Eight model pile pull-out tests were conducted using three reinforced concrete circular model piles with different surface conditions (smooth, smooth with necking and bulging, and rough) in combination with three different LDPE sheet arrangements (one-sheet, two-sheet, and three-sheet). The pile was embedded partially in Ottawa sand with a surcharge of 19.3 kPa on sand surface. The test results showed that an arrangement with 3 pieces of 0.25-mm thick LDPE sheet was most effective in reducing side friction up to an average of 89 %. It was also found that the effectiveness of LDPE sheets is independent of the concrete surface roughness. However, the presence of necking and bulging was found to increase the side resistance up to 40 % for the plain pile without LDPE sheets.

show abstract

Bitumen Coating versus Plastic Sheeting for Reducing Negative Skin Friction

Cited by 5 publications

References 1 publication

Experiments on Reducing Negative Skin Friction of Piles

Experiments on Reducing Negative Skin Friction of Piles

Negative Skin Friction on Piles: State of the Art

Model Pile Pull-Out Tests Using Polyethylene Sheets to Reduce Downdrag on Cast In Situ Piles

Contact Info

Product

Resources

About