Study on Mix Design & Hardened Properties of Self-Compacting Concrete

2017 ◽  
Vol V (VIII) ◽  
pp. 2098-2104
Author(s):  
Vishal Kumar
Keyword(s):  
Mix Design ◽  
Self Compacting Concrete ◽  
Hardened Properties

scholarly journals Performance of Self Compacting Concrete Replaced with Saturated Recycled Aggregate

2020 ◽  
Vol 9 (6) ◽  
pp. 505-510
Keyword(s):  
Coarse Aggregate ◽  
Recycled Aggregate ◽  
Mix Design ◽  
Recycled Aggregates ◽  
Self Compacting Concrete ◽  
Ordinary Concrete ◽  
Coarse Aggregates ◽  
Fine Aggregates ◽  
Hardened Properties ◽  
Concrete Concept

The use of recycled aggregate in any concrete saves the virgin coarse and fine aggregates to create for the production of concrete. This concept will deliver an ecofriendly, reduced eviction of natural resources and produce a green concrete concept. Coarse aggregate consists of more than 60% of total volume in ordinary concrete but only 40% is required for Self Compacting Concrete (SCC) by weight. Demolished concrete wastes which are crushed and sieved to the size are used as substitute for natural coarse aggregates. In this paper natural coarse aggregate in self-compacting concrete is replaced with 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% & 100% recycled aggregates in mix design. Furthermore, a detailed study on workability and hardened properties of specially proportioned mixes are also carried out and satisfactory results are obtained. Thus the derived SCC can come up with reduced CO2 emissions, economical and energy saving with all additional well-known advantages of fluid 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

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 Dolomitic filler in self-compacting concrete: a review

2020 ◽  
Vol 5 ◽  
pp. 75-83
Author(s):  
Ahmed Abdalqader ◽  
Mohammed Sonebi
Keyword(s):  
Key Factors ◽  
Self Compacting Concrete ◽  
Factors Affecting ◽  
Chemical Admixtures ◽  
Wide Range ◽  
Alkali Carbonate ◽  
Self Compatibility ◽  
Hardened Properties ◽  
By Products ◽  
Carbonate Reaction

The utilization of fine powders as fillers in self-compacting concrete (SCC) application is widespread, particularly in Europe. The incorporation of these fillers to attain the self-compatibility properties of SCC seems to be cheaper than the use of chemical admixtures. Among the wide range of potential fillers, dolomitic powders, particularly generated as by-products from quarry’s processing, are locally available and can be used to produce SCC. Few studies have shown that dolomitic powders can be incorporated in the SCC’s mix design, resulting in acceptable fresh and hardened properties of SCC. The particle size distribution and fineness of the dolomitic powder as well as the level of addition are the key factors affecting those properties. The influence of the chemical nature of the dolomitic powder on the properties of SCC, particularly the durability (e.g. alkali-carbonate reaction), is yet to be investigated. Furthermore, more efforts are still required to investigate the use of dolomitic by-products in the production of SCC.

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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