Strength, Elastic Modulus, and Creep of High-Strength Concrete Produced with Bagasse Ash and Recycled Concrete Aggregate

2019 ◽  
Vol 49 (2) ◽  
pp. 20180427
Author(s):  
Pokpong Rattanachu ◽  
Weerachart Tangchirapat ◽  
Chai Jaturapitakkul ◽  
Prinya Chindaprasirt
Keyword(s):  
Elastic Modulus ◽  
High Strength Concrete ◽  
High Strength ◽  
Recycled Concrete ◽  
Concrete Aggregate ◽  
Recycled Concrete Aggregate ◽  
Strength Concrete

Fabrication of High Strength Concrete from Recycled Concrete Aggregate Utilizing Taguchi Method

2015 ◽  
Vol 789-790 ◽  
pp. 1109-1113
Author(s):  
Eduardo Magdaluyo Jr. ◽  
Lorenz Charles E. Aterrado ◽  
Jared Christian B. Paz ◽  
Ivy Rose B. Gonzales
Keyword(s):  
Compressive Strength ◽  
Surface Morphology ◽  
High Strength Concrete ◽  
Absorption Rate ◽  
High Strength ◽  
Recycled Concrete ◽  
Concrete Aggregate ◽  
Recycled Concrete Aggregate ◽  
Strength Concrete ◽  
Concrete Mixtures

The preparation of concrete mixtures can be tailored to provide wide range of mechanical and durability properties as well as to meet the design specifications of the structure. This paper discusses the potential use of recycled concrete aggregate in the production of high strength concrete. The effect of other processing parameters such as aggregate replacement ratio, type of admixture and slump height on the compressive strength and water absorption rate of different concrete mixes were investigated. The fabrication of high strength concrete was done by machine-mixing of the aggregates, cement and admixture in accordance with ASTM C192, utilizing the Taguchi design to derive the concrete mixtures. Using the 10% recycled fine aggregate with Mira P99 admixture and slump height of 4-6 inches showed an optimum condition and yielded a predicted maximum compressive strength at around 8400 psi. The failure mode of the concrete after compression test was generally shear fracture type. For the water absorption rate, only the admixture had a significant effect. Surface morphology of the fractured concrete surface revealed that utilizing recycled concrete aggregate resulted to a porous surface morphology compared to the natural aggregate.

Performance Deterioration of High Strength Concrete under Mixed Erosion and Freeze-Thaw Cycling

2010 ◽  
Vol 163-167 ◽  
pp. 1655-1660
Author(s):  
Jian Zhang ◽  
Bo Diao ◽  
Xiao Ning Zheng ◽  
Yan Dong Li
Keyword(s):  
Compressive Strength ◽  
Elastic Modulus ◽  
Mass Loss ◽  
Modulus Of Elasticity ◽  
Dynamic Modulus ◽  
High Strength Concrete ◽  
High Strength ◽  
Freeze Thaw ◽  
Strength Concrete ◽  
Dynamic Modulus Of Elasticity

The mechanical properties of high strength concrete(HSC) were experimentally investigated under mixed erosion and freeze-thaw cycling according to ASTM C666(Procedure B), the erosion solution was mixed by weight of 3% sodium chloride and 5% sodium sulfate. The mass loss, relative dynamic modulus of elasticity, compressive strength, elastic modulus and other relative data were measured. The results showed that with the increasing number of freeze-thaw cycles, the surface scaled more seriously; the mass loss, compressive strength and elastic modulus continued to decrease; the relative dynamic modulus of elasticity increased slightly in the first 225 freeze-thaw cycles, then decreased in the following 75 cycles; the corresponding strain to peak stress decreased with the increase of freeze-thaw cycles. After 200 cycles, the rate of deterioration of concrete accelerated obviously.

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