Reusing granite sawing waste in self‐compacting concrete with polypropylene fiber at low‐volume fractions

2018 ◽  
Vol 20 (2) ◽  
pp. 766-773 ◽  
Author(s):  
Aarthi Karmegam ◽  
Arunachalam Kalidass
Keyword(s):  
Polypropylene Fiber ◽  
Self Compacting Concrete ◽  
Volume Fractions ◽  
Low Volume

scholarly journals Inviscid simulations of expansion waves propagating into structured particle beds at low volume fractions

2018 ◽  
Vol 3 (9) ◽  
Author(s):  
Goran Marjanovic ◽  
Jason Hackl ◽  
Mrugesh Shringarpure ◽  
Subramanian Annamalai ◽  
Thomas L. Jackson ◽  
...  
Keyword(s):  
Volume Fractions ◽  
Expansion Waves ◽  
Low Volume ◽  
Particle Beds

scholarly journals Aggregation kinetics of irreversible patches coupled with reversible isotropic interaction leading to chains, bundles and globules

2018 ◽  
Vol 90 (6) ◽  
pp. 1085-1098 ◽  
Author(s):  
Isha Malhotra ◽  
Sujin B. Babu
Keyword(s):  
Self Assembly ◽  
Patch Size ◽  
Colloidal Particles ◽  
Volume Fraction ◽  
Interaction Strength ◽  
Colloidal System ◽  
Angle Distribution ◽  
Volume Fractions ◽  
Low Volume ◽  
A Chain

Abstract In the present study we are performing simulation of simple model of two patch colloidal particles undergoing irreversible diffusion limited cluster aggregation using patchy Brownian cluster dynamics. In addition to the irreversible aggregation of patches, the spheres are coupled with isotropic reversible aggregation through the Kern–Frenkel potential. Due to the presence of anisotropic and isotropic potential we have also defined three different kinds of clusters formed due to anisotropic potential and isotropic potential only as well as both the potentials together. We have investigated the effect of patch size on self-assembly under different solvent qualities for various volume fractions. We will show that at low volume fractions during aggregation process, we end up in a chain conformation for smaller patch size while in a globular conformation for bigger patch size. We also observed a chain to bundle transformation depending on the attractive interaction strength between the chains or in other words depending on the quality of the solvent. We will also show that bundling process is very similar to nucleation and growth phenomena observed in colloidal system with short range attraction. We have also studied the bond angle distribution for this system, where for small patches only two angles are more probable indicating chain formation, while for bundling at very low volume fraction a tail is developed in the distribution. While for the case of higher patch angle this distribution is broad compared to the case of low patch angles showing we have a more globular conformation. We are also proposing a model for the formation of bundles which are similar to amyloid fibers using two patch colloidal particles.

The Effect of Polypropylene Fiber on the Mechanical Properties of Self-Compacting Concrete

2010 ◽  
Vol 168-170 ◽  
pp. 1325-1329
Author(s):  
Ye Ran Zhu ◽  
Jun Cai ◽  
Dong Wang ◽  
Guo Hong Huang
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Polypropylene Fiber ◽  
Flexural Properties ◽  
Test Results ◽  
Self Compacting Concrete ◽  
Bending Tests ◽  
Flexural Toughness ◽  
Four Point Bending

This paper investigates the mechanical properties (compressive strength, splitting tensile strength and flexural toughness) of polypropylene fiber reinforced self-compacting concrete (PFRSCC). The effect of the incorporation of polypropylene fiber on the mechanical properties of PFRSCC is determined. Four point bending tests on beam specimens were performed to evaluate the flexural properties of PFRSCC. Test results indicate that flexural toughness and ductility are remarkably improved by the addition of polypropylene fiber.

Mechanical Properties of Fiber Reinforced Self-Compacting Concrete

2013 ◽  
Vol 470 ◽  
pp. 797-801 ◽  
Author(s):  
Wu Jian Long ◽  
Han Xin Lin ◽  
Zhen Rong Chen ◽  
Kai Long Zhang ◽  
Wei Lun Wang
Keyword(s):  
Compressive Strength ◽  
Steel Fiber ◽  
Polypropylene Fiber ◽  
Performance Testing ◽  
The Self ◽  
Self Compacting Concrete ◽  
Curing Period ◽  
Polyethylene Fiber ◽  
Mechanics Performance ◽  
Mechanical Strengths

The mechanical strengths of self-compacting concrete (SCC) with different strengths and different fibers were investigated. By mechanics performance testing on concrete samples, it shows that the fiber can significantly reduce strength of the self-compacting concrete during curing period. The 28d tensile strength of self-compacting concrete can be improved when steel fiber, polypropylene fiber, or polyethylene fiber were used. Moreover, steel fiber can improve the 28d compressive strength; contrarily, polypropylene fiber and polyethylene fiber can reduce the 28d compressive strength.

Polypropylene Fiber Reinforced Concrete for Rigid Airfield Pavement

2011 ◽  
Vol 228-229 ◽  
pp. 627-633
Author(s):  
Tammam Merhej ◽  
Liang Liang Cheng ◽  
De Cheng Feng
Keyword(s):  
Compressive Strength ◽  
Flexural Strength ◽  
Volume Fraction ◽  
Polypropylene Fiber ◽  
Fiber Reinforced Concrete ◽  
Modulus Of Rupture ◽  
Polypropylene Fibers ◽  
Strength Ratio ◽  
Flexural Toughness ◽  
Volume Fractions

The effect of adding polypropylene fibers; with different shapes and volume fractions; on the compressive strength, modulus of rupture, load-deflection curve and flexural toughness (equivalent flexural strength ratio) of concrete was investigated. Crimped and twisted polypropylene fibers were used with 0.0%, 0.2%, 0.4% and 0.6% volume fractions. It was found that the compressive strength, flexural strength and the equivalent flexural strength ratio of concrete increased about 11%, 25% and 40% respectively by adding 0.6% volume fraction of twisted polypropylene fiber. In addition; it was found that the contribution of polypropylene fiber to the flexural strength and flexural toughness was more effective when twisted polypropylene fiber was added comparing to crimped polypropylene fibers. The experimental results were used in numerical example using FAARFIELD program to explore the airfield pavement thickness reduction resulted from polypropylene fiber incorporation.

Preparation and Performances of Self-Compacting Concrete Used in the Joint Section between Steel and Concrete Box Girders of Edong Yangtze River Highway Bridge

2010 ◽  
Vol 168-170 ◽  
pp. 334-340
Author(s):  
Bei Xing Li ◽  
Ai Jun Guan ◽  
Ming Kai Zhou
Keyword(s):  
Crack Resistance ◽  
Yangtze River ◽  
Steel Fiber ◽  
Polypropylene Fiber ◽  
Scale Model ◽  
Fiber Reinforced ◽  
Freezing And Thawing ◽  
Self Compacting Concrete ◽  
Box Girders ◽  
Joint Section

The joint section between steel and concrete box girders is the key localization of the super-long span hybrid girder cable-stayed bridge in the Edong Yangtze River, a high strength self-compacting concrete (SCC) was required to use in the joint section. This paper systematically investigated the performances of three types of C55 grade self-compacting concretes (SCCs), such as plain SCC, micro-expansion and polypropylene fiber reinforced SCC and steel fiber reinforced SCC. The results indicated that the steel fiber reinforced SCC had the best workability and mechanical properties. The flexural toughness of the steel fiber reinforced SCC was much better than that of the other two types of concretes. The addition of steel fiber, or polypropylene fiber and expansive agent improved the crack resistance of SCC, and the micro-expansion and polypropylene fiber SCC reinforced had better crack resistance than steel fiber reinforced SCC. The three types of SCCs have very high chloride penetration resistance and advanced freezing and thawing resistance. Moreover, the test achievement of concrete casting technology for the full-scale model of steel girder chambers in the joint section is introduced. The steel fiber reinforced SCC was preferred to be used in the steel-concrete joint section.

Sign in / Sign up

Export Citation Format

Share Document