Polymer-based materials for repair and improved durability: Japanese experience

Ohama, Yoshihiko

doi:10.1016/0950-0618(95)00063-1

Cited by 57 publications

(27 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[17][18][19][20] The reduction in UCSs was consistent with previous results. 13 By contrast, no reduction in the UCS was observed in another study 21 with polymer modification of the cement matrices.…”

Section: Effect On Strengthmentioning

confidence: 87%

Effect of latex modification of Portland cement matrices on properties of heavy metal immobilized products

Vidhya

Jothikumar

Khanna

1999

J. Appl. Polym. Sci.

View full text Add to dashboard Cite

Solidification and stabilization are considered to be a successful method for the treatment of hazardous metal sludges because the properties of the end product and cheap methods of disposal. Although solidification often limits the undue leaching of metals, the highly porous nature of the cement matrices are susceptible to attack by various solutes after placement in landfills, thus reducing their strength and durability. Improved methods of treatment for the metal sludges are required. Modification of the physical properties, especially porosity, of the cement matrices can improve the properties of the final product. The objective of this research was to study the effect of polymer modification of the cement matrices on the strength and leachability of the solidified and stabilized product. The results of this preliminary study showed a 10-fold reduction in the leachability of the metals, although no noticable difference in strength values was noted.

show abstract

Section: Effect On Strengthmentioning

confidence: 87%

Effect of latex modification of Portland cement matrices on properties of heavy metal immobilized products

Vidhya

Jothikumar

Khanna

1999

J. Appl. Polym. Sci.

View full text Add to dashboard Cite

show abstract

“…As the cement hydration process and the continuous evaporation of water, the water decreases in the cement mortar system, the polymer particles flocculate in the cement mortar, while the polymer-films are produced in the paste-aggregate interface and capillary voids. The relative tensile strength and the toughness of the polymer-film is excellent, the polymer-films distribute in the interface of cement hydrates, aggregates and fibers, reducing microcracks in the process of hardening of the cement hydration [10,11] . When the addition of polymer latex is enough to form the complete continuous polymer-film, it will significantly improve performances of the cement mortar.…”

Section: Modification Mechanism Of Sbr Polymer and Pp Fibers Modifiedmentioning

confidence: 98%

Influences of polypropylene fiber and SBR polymer latex on abrasion resistance of cement mortar

Zhou

2010

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

View full text Add to dashboard Cite

Influences of polypropylene (PP) fiber and styrene-butadiene rubber (SBR) polymer latex on the strength performance, abrasion resistance of cement mortar were studied. The experimental results show that the flexural strength, brittleness index (σ F /σ C ) and abrasion resistance can be improved significantly by the addition of PP fiber and SBR polymer latex. The relationship between the flexural strength and abrasion resistance was analyzed, showing a good linear relationship between them. The reinforced mechanism of PP fiber and SBR polymer latex on cement mortar was analyzed by some microscopic tests. The test results show that the addition of SBR polymer latex has no significant influence on the cement hydration after 7 d curing. Adding SBR polymer latex into cement mortar can form a polymer transition layer in the interfaces of PP fiber and cement hydrates, which improves the bonding properties between the PP fiber and cement mortar matrix effectively.

show abstract

“…Bonding strength testing was conducted in accordance with ASTM C882 using cylinders (j75 3 150 mm 2 ) with a dummy section made by Portland cement mortar at an angle of 30°from the vertical. Additional dummy sections were made by casting repair mortar against the machined dummy section held in a specimen mold.…”

Section: Design and Test Methodsmentioning

confidence: 99%

Evaluation of cementitious repair mortars modified with polymers

Weng

2017

Advances in Mechanical Engineering

View full text Add to dashboard Cite

The aim of this study was to evaluate the effects of added polymers on the properties of repair mortars. Two types of polymers, ethylene vinyl acetate and polyvinyl acetate-vinyl carboxylate, were used as a replacement for 3%, 5%, and 8% of the cement (by weight). All tests were conducted using two water-cement ratios of 0.5 and 0.6. The effectiveness of the repair materials was evaluated according to setting time, drying shrinkage, thermal expansion, compressive strength, and bond strength. Specimens containing polyvinyl acetate-vinyl carboxylate at a water-cement ratio of 0.5 presented the highest compressive and bond strength. Specimens containing ethylene vinyl acetate presented strength characteristics exceeding those of the control at 28 days. The drying shrinkage of polyvinyl acetate-vinyl carboxylate specimens was similar to that of the control. At a water-cement ratio of 0.5, the thermal expansion of polyvinyl acetate-vinyl carboxylate specimens was lower than that of ethylene vinyl acetate specimens; however, at a water-cement ratio of 0.6, the thermal expansion was independent of the type of polymer.

show abstract

Polymer-based materials for repair and improved durability: Japanese experience

Cited by 57 publications

References 2 publications

Effect of latex modification of Portland cement matrices on properties of heavy metal immobilized products

Effect of latex modification of Portland cement matrices on properties of heavy metal immobilized products

Influences of polypropylene fiber and SBR polymer latex on abrasion resistance of cement mortar

Evaluation of cementitious repair mortars modified with polymers

Contact Info

Product

Resources

About