MIX DESIGN OF THE SELF-COMPACTING CONCRETE

2003 ◽  
pp. 331-338 ◽  
Author(s):  
Maria KASZYŃSKA
Keyword(s):  
The Self ◽  
Mix Design ◽  
Self Compacting Concrete

Effect of the mix design on the robustness of fresh self-compacting concrete

2017 ◽  
Vol 82 ◽  
pp. 190-201 ◽  
Author(s):  
Farid Van Der Vurst ◽  
Steffen Grünewald ◽  
Dimitri Feys ◽  
Karel Lesage ◽  
Lucie Vandewalle ◽  
...  
Keyword(s):  
Mix Design ◽  
Self Compacting Concrete

Influence of fine sediments on rheology properties of the self-compacting concrete

2021 ◽  
Author(s):  
Nongwendé Philippe Ouedraogo ◽  
Frédéric Becquart ◽  
Mahfoud Benzerzour ◽  
Nor-Edine Abriak
Keyword(s):  
The Self ◽  
Self Compacting Concrete ◽  
Fine Sediments

scholarly journals Effects of Admixtures on the Self Compacting Concrete State of the Art Report

2020 ◽  
Vol 1006 ◽  
pp. 012038
Author(s):  
S Christopher Gnanaraj ◽  
Ramesh Babu Chokkalingam ◽  
G LiziaThankam
Keyword(s):  
State Of The Art ◽  
The Self ◽  
Self Compacting Concrete

The Compounding and Application Mechanism of Polycarboxylate-Based Superplasticizers in the Self-Compacting Concrete

2011 ◽  
Vol 250-253 ◽  
pp. 711-717 ◽  
Author(s):  
Miao Miao Gui ◽  
Yun Hui Fang ◽  
Zi Dong Lan ◽  
Fei Yu Yu ◽  
Tian Xing Lin ◽  
...  
Keyword(s):  
Steric Hindrance ◽  
Graft Copolymerization ◽  
Raw Materials ◽  
The Self ◽  
Main Mechanism ◽  
Self Compacting Concrete ◽  
The Given ◽  
Copolymerization Reaction

Polycarboxylate-based superplasticizers are synthesized by radical graft copolymerization reaction, and the products are divided into ester series (PC-1) and ether series (PC-2) on the basis of different big monomers. This article studies on influence of the different composition and dosages of the synthetic superplasticizers in the self-compacting concrete (SCC). The results show that the requirements of SCC workability can be achieved through simple adjustment kinds and dosages of the synthetic superplasticizers under the given mix proportions and the raw materials. And the main mechanism of the polycarboxylate-based superplasticizers is steric hindrance effect.

Self Compacting Concrete Structures: A Techno-Economic Analysis

2017 ◽  
Vol 21 ◽  
pp. 624-631 ◽  
Author(s):  
Nicolae Cazacu ◽  
Aurelia Bradu ◽  
Nicolae Florea
Keyword(s):  
Mechanical Characteristics ◽  
Concrete Surface ◽  
Mix Design ◽  
Building Industry ◽  
Skilled Workers ◽  
Self Compacting Concrete ◽  
Construction Time ◽  
Placement Method ◽  
Global Cost

The concept of self-compacting concrete (SCC) was performed in late 1980 by Japanese researchers as a solution for the lack of skilled workers and decreasing quality in building industry. The high fluidity of SCC allows flowing under its own weight, filling completely the formwork without any vibration or material segregation, providing a higher quality of the concrete surface. Since its discovery, a large number of researcher studied its rheological properties, adjusted mix design methods and analysed mechanical characteristics. The placement method for conventionally concrete is no more valid for SCC, as mixture behaviour changed substantially. This aspect was less examined and the published material is inconsistent, even though it plays an essential role in the assessment of the global cost of a building. The aim of this study is to investigate materials cost, the labour requirements, formwork demands, methods of placement and construction time for building a structure using SCC and vibrated concrete and compare the results.

scholarly journals Experimental Study and Extended Finite Element Simulation of Fracture of Self-Compacting Rubberized Concrete

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Xinquan Wang ◽  
Hongguo Diao ◽  
Yunliang Cui ◽  
Changguang Qi ◽  
Shangyu Han
Keyword(s):  
Finite Element ◽  
Loading Rate ◽  
High Performance Concrete ◽  
The Self ◽  
Experimental Results ◽  
Crack Mouth Opening Displacement ◽  
Displacement Curve ◽  
Rubberized Concrete ◽  
Extended Finite Element ◽  
Self Compacting Concrete

Self-compacting rubberized concrete (SCRC) is a high-performance concrete that can achieve compacting effect by self-gravity without vibration during pouring. Because of its excellent fluidity, homogeneity, and stability, the application of self-compacting concrete in engineering can improve work efficiency and reduce project cost. The effects of loading rate on the fracture behavior of self-compacting concrete were studied in this paper. Three-point bend (TPB) tests were carried out at five loading rates of 1, 0.1, 0.001, 0.0001, and 0.00001 mm/s. The dimensions of the specimens were 100  mm × 100 mm × 400 mm. A precast crack was set in the middle of the specimen with a notch-depth ratio of 0.4. The experimental results show that the peak load on the load-CMOD (crack mouth opening displacement) curve gradually increases with the increase of the loading rate. Although the fracture energy a presented greater dispersion under the loading rate of 1 mm/s, the overall changes were still rising with the increase of the loading rate. Besides studying the softening characteristics of the self-compacting concrete, the constitutive softening curve of the self-compacting concrete was obtained using the bilinear model. Finally, curved three-point bending beams were simulated by using the extended finite element method based on ABAQUS. The fracture process of the self-compacting concrete under different loading conditions was analyzed more intuitively. The simulation results were compared with the experimental results, and the same conclusions were obtained.

Influence of Asphalt Dust Waste Material in Mix Design for Self-Compacting Concrete

2017 ◽  
Vol 730 ◽  
pp. 473-478 ◽  
Author(s):  
Shahiron Shahidan ◽  
Isham Ismail ◽  
Muhammad Shafiq Syazwan Zulkarnaian ◽  
Norashidah Abd Rahman
Keyword(s):  
Mix Design ◽  
Waste Materials ◽  
Gravity Effect ◽  
Limited Information ◽  
Self Compacting Concrete ◽  
Green Concrete ◽  
Vibration Process ◽  
Binder Ratio ◽  
Alternative Solutions ◽  
Water Binder Ratio

Various studies on concrete have been conducted to utilize waste materials from different industries to produce sustainable green concrete. Adding asphalt dust waste (ADW) as a filler in the development of self-compacting concrete (SCC) is one of the alternative solutions. SCC is a high workability concrete that can flow under its own weight without vibration process and flows with gravity effect. However, there is limited information on the effect of ADW in the development of SCC. Therefore, this study is conducted to investigate the use of ADW in SCC in order to maximize its benefits in improving the workability of SCC. This experimental study was done to examine the effects of water binder ratio and amount of superplasticizer (SP) on the rheological and mechanical properties of the developed SCC. The results showed that the increase of w/b ratio and amount of SP will also improve the workability of SCC. It was found that the suitable percentages of ADW as a concrete filler are between 30% to 50%. In conclusion, the results showed that the optimum percentage of ADW in SCC mix design was 40% with a w/b ratio of 0.3 and 2% SP which yielded a compressive strength of 40.8 MPa.

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