Effect of different geometric polypropylene fibers on plastic shrinkage cracking of cement mortars
Title: Effect of different geometric polypropylene fibers on plastic shrinkage cracking of cement mortars
Author(s): Y. Ma, M. Tan, K. Wu
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
Publisher: RILEM Publications SARL
Issue date: 2002-04-01
Publication year: 2002
Pages: 165 - 169
Total Pages: 5
Nb references: 5
Abstract: Three kinds of different geometric (cross-section) polypropylene fibers were used to investigate their effects on plastic shrinkage cracking of cement mortars.
The test results showed that polypropylene fiber made in drawingwire technique with circular cross-section (abbreviated as DW-PP fiber)had a more pronounced effect on the resistance to plastic shrinkage cracking than the polypropylene fiber made in a fibrillated film technique with rectangular cross-section (abbreviated as FF-PP fiber).
Polypropylene fiber with Y-shape cross-section had a little more effective than that of DW-PP fiber.
For the three kinds of polypropylene fibers,the plastic shrinkage cracking resistance for cement mortar increased with fiber addition changing from 0.
It was observed that there was almost no plastic shrinkage cracking even when the volume fraction of DW-PP fiber was as low as 0.
The mechanism of the resistance effect of different geometric polypropylene fibers on the plastic shrinkage cracking of cement mortars is discussed.
Online publication: 2002-02-25
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
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