Quarry fines: an ideal material for the manufacture of foamed concrete

Jose, Sajan K.; Soman, Mini; Evangeline, Y. Sheela

doi:10.1007/s42107-020-00310-7

Cited by 6 publications

(1 citation statement)

References 12 publications

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“…The other two types of polyurethane films did not show a crystalline melting peak. It can be seen that although the soft segment itself has a strong crystallization ability, the symmetry and regularity of the molecular chain are reduced after the reaction produces anionic polyurethane [7]. The intermolecular force increases, and the molecular flexibility decreases.…”

Section: Thermal Properties Of Ptpe-pu Filmmentioning

confidence: 99%

A Research on the Behavior of a Polyurethane Polymer Waterproof Material Used in Bridge Geotechnical Applications

Wang¹,

Xu²

2022

Fluid Dynamics &Amp; Materials Processing

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Polyurethane is enjoying a widespread use as a polymer-based waterproof material in civil engineering In the present study we consider a temperature-sensitive waterproof and moisture-permeable polyurethane material (PTPE-PU) characterized by one or more phase transition temperatures (critical temperatures). Near the critical temperature, the waterproof and moisture permeability of polyurethane undergo abrupt changes. The related stability, thermal performance, water resistance, hydrostatic pressure, and moisture permeability are investigated here considering a PTPE-PU traditionally used in bridge geotechnical engineering. The results show that the moisture permeability of the coated bridge rock and soil undergo sudden variations near the crystallization and melting temperature of the soft segment. The moisture permeability is 3000 g/(m 2 d). The hydrostatic pressure of the coated bridge rock and soil is 3.5 kPa.

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Section: Thermal Properties Of Ptpe-pu Filmmentioning

confidence: 99%