Effect of the Welan Gum Biopolymer on Rheological Properties and Storage Stability of Bitumens

2016 ◽  
Vol 44 (6) ◽  
pp. 20150119 ◽  
Author(s):  
Liang-Liang Tu ◽  
Shao-Peng Wu ◽  
Gang Liu ◽  
Xin-Xing Zhou ◽  
Shan-Kui Ma
Keyword(s):  
Rheological Properties ◽  
Storage Stability ◽  
Welan Gum ◽  
And Storage

scholarly journals Rheological properties, textural properties, and storage stability of palm kernel-based diacylglycerol-enriched mayonnaise

2015 ◽  
Vol 118 (2) ◽  
pp. 185-194 ◽  
Author(s):  
Eng-Tong Phuah ◽  
Boon-Kee Beh ◽  
Cindy Shu-Ying Lim ◽  
Teck-Kim Tang ◽  
Yee-Ying Lee ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Storage Stability ◽  
Palm Kernel ◽  
Textural Properties ◽  
And Storage

scholarly journals Investigation on Rheological Properties and Storage Stability of Modified Asphalt Based on the Grafting Activation of Crumb Rubber

Polymers ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 1563 ◽  
Author(s):  
Xie ◽  
Yang ◽  
Lv ◽  
Zhang ◽  
Zhu ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Storage Stability ◽  
Crumb Rubber ◽  
Modified Asphalt ◽  
Rubber Particles ◽  
Polymer Separation ◽  
Low Temperature Creep ◽  
Rheological Test ◽  
And Storage ◽  
Separation Test

Acrylamide with a double bond and amide group can not only copolymerize with macromolecules of crumb rubber but also react with acidic groups in asphalt, so it was selected as a modifier to activate crumb rubber through chemical graft action. The purpose is to improve the compatibility between crumb rubber and asphalt and thus improve the rheological properties and storage stability of rubber asphalt. Infrared spectroscopy (IR) and scanning electron microscopy (SEM) were used to characterize the crumb rubbers and their modified asphalt. It was found that the crumb rubber of grafting acrylamide had better compatibility in asphalt due to its larger specific surface area and chemical reaction with asphalt. In addition, the high temperature rheological test, low temperature creep test, and polymer separation test were carried out to study the effect of grafted activated crumb rubber on the properties of modified asphalt. The results showed that compared with modified asphalt with common crumb rubber (CRMA), the rheological properties and storage stability of modified asphalt with grafting activated crumb rubber (A–G–R) were improved significantly. The results of microscopic and macroscopic tests show that the activated rubber particles have a larger contact area with asphalt due to a rougher surface and the chemical cross-linking between rubber particles and asphalt further strengthens their interaction. Therefore, there is a relatively stable blend system formed in modified asphalt, and its performance of modified asphalt has been improved.

scholarly journals SBS Modified Bitumen with Organic Layered Double Hydroxides: Compatibility and Aging Effects on Rheological Properties

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4201
Author(s):  
Canlin Zhang ◽  
Hongjun Dong ◽  
Zhengli Yan ◽  
Meng Yu ◽  
Ting Wang ◽  
...  
Keyword(s):  
High Temperature ◽  
Rheological Properties ◽  
Layered Double Hydroxides ◽  
Storage Stability ◽  
Service Performance ◽  
Aging Effects ◽  
Modified Bitumen ◽  
High Temperature Properties ◽  
Double Hydroxides ◽  
And Storage

SBS-modified bitumen (SMB) is susceptible to aging, which seriously influences its service performance and life. In order to strengthen the anti-aging ability of SMB, triethoxyvinylsilane was designed to organically modify layered double hydroxides (LDHs) and was applied to modify SMB. The dispersibility and storage stability of LDHs in SMB were markedly enhanced after triethoxyvinylsilane organic modification, and the compatibility and storage stability of SBS in bitumen were simultaneously enhanced. Compared with SMB, the introduction of LDHs and organic LDHs (OLDHs) could ameliorate the high-temperature properties of SMB, and the thermostability of SBS in bitumen at a high temperature was also distinctly improved, especially OLDHs. After aging, due to the oxidation of molecular bitumen and the degradation of molecular SBS, SMB became hardened and brittle, and the rheological properties were significantly deteriorated, which had serious impacts on the performance of SMB. LDHs can mitigate the detriment of aging to bitumen and SBS, and the deterioration of the rheological properties of SMB is obviously alleviated. As a result of the better dispersibility and storage stability, OLDHs exerted superior reinforcement of the anti-aging ability of SMB.

Rheological properties and storage stability of asphalt modified with nanoscale polyurethane emulsion

2017 ◽  
Vol 36 (1) ◽  
pp. 85-90 ◽  
Author(s):  
Ruien Yu ◽  
Xijing Zhu ◽  
Xing Zhou ◽  
Yanfei Kou ◽  
Maorong Zhang ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Storage Stability ◽  
And Storage

scholarly journals Rheological Properties, Compatibility, and Storage Stability of SBS Latex-Modified Asphalt

Materials ◽  
2019 ◽  
Vol 12 (22) ◽  
pp. 3683 ◽  
Author(s):  
Shisong Ren ◽  
Xueyan Liu ◽  
Weiyu Fan ◽  
Haopeng Wang ◽  
Sandra Erkens
Keyword(s):  
Rheological Properties ◽  
Flow Resistance ◽  
Storage Stability ◽  
Elastic Recovery ◽  
Steady State Flow ◽  
Modified Asphalt ◽  
Asphalt Modification ◽  
Styrene Butadiene ◽  
And Storage ◽  
Butadiene Styrene

A styrene-butadiene-styrene (SBS) latex modifier can be used for asphalt modification due to the fact of its energy-saving, construction convenience, and economic advantages. The objective of this study was to investigate the influence of asphalt type and SBS latex dosage on the rheological properties, compatibility, and storage stability of asphalt through temperature and frequency sweep, steady-state flow, multiple stress creep and recovery (MSCR) tests, Cole-Cole plots and thermal storage tests. The results indicated that high SBS latex content is beneficial for improving anti-rutting, anti-fatigue, viscous flow resistance, and elastic recovery abilities of modified asphalt. The chemical composition of asphalt had a significant effect on the properties of the SBS latex-modified asphalt. High asphaltenes and low resins were favorable to enhancing anti-rutting and recovery properties but weakened the anti-fatigue, compatibility, and storage stability of modified asphalt. Furthermore, compared to SBS particle-modified asphalt, SBS latex-modified asphalt had greater rutting and fatigue resistance. However, SBS latex-modified asphalt had some disadvantages in compatibility and storage stability. Comprehensively considering the balance of viscoelastic properties, compatibility, and storage stability of SBS latex-modified asphalt, the mixing dosage of SBS latex modifier is recommended at 4.0 wt% which could feasibly replace SBS particle in asphalt modification.

The Effect of Nanoclay on Rheological Properties and Storage Stability of SBS-Modified Bitumen

2011 ◽  
Vol 29 (8) ◽  
pp. 850-859 ◽  
Author(s):  
S. Sadeghpour Galooyak ◽  
B. Dabir ◽  
A. E. Nazarbeygi ◽  
A. Moeini ◽  
B. Berahman
Keyword(s):  
Rheological Properties ◽  
Storage Stability ◽  
Modified Bitumen ◽  
And Storage

Thermo-rheological properties and storage stability of SEBS/kaolinite clay compound modified asphalts

2006 ◽  
Vol 42 (2) ◽  
pp. 446-457 ◽  
Author(s):  
Chunfa Ouyang ◽  
Shifeng Wang ◽  
Yong Zhang ◽  
Yinxi Zhang
Keyword(s):  
Rheological Properties ◽  
Storage Stability ◽  
Kaolinite Clay ◽  
And Storage

Rheological properties and storage stability of bitumen/SBS/montmorillonite composites

2010 ◽  
Vol 24 (3) ◽  
pp. 300-307 ◽  
Author(s):  
Saeed Sadeghpour Galooyak ◽  
Bahram Dabir ◽  
Ali Ehsan Nazarbeygi ◽  
Alireza Moeini
Keyword(s):  
Rheological Properties ◽  
Storage Stability ◽  
And Storage
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