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rockfilled concrete the new norm of scc in hydraulic

rockfilled concrete the new norm of scc in hydraulic

Rock-filled concrete, the new norm of SCC in hydraulic ...

Nov 01, 2014  Rock-filled concrete (RFC), a new type of concrete based on the technology of SCC, was developed for use in massive structures in China , .As shown in Fig. 1, RFC is a combination of SCC and rock; it is produced by filling SCC into the voids of rock blocks having a minimum size of 300 mm because of SCC’s good fluidity and segregation resistance .

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Rock-filled concrete, the new norm of SCC in hydraulic ...

Rock-filled concrete (RFC) was developed in China in 2003 as an application of self-compacting concrete (SCC) that can then be used as “normal” concrete for massive concrete constructions. RFC is produced by filling the voids of rock blocks with SCC, which has good fluidity and segregation resistance.

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Rock-filled concrete, the new norm of SCC in hydraulic ...

Rock-filled concrete (RFC) [1] is a new type of mass concrete and it is formed by filling self-compacting concrete (SCC) into the voids between a pre-placed assembly of rock grains. SCC has high ...

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Rock-Filled Concrete - Development, investigations and ...

Rock-filled concrete (RFC) was developed in China in 2003 as an application of self-compacting concrete (SCC) that can then be used as “normal” concrete for massive concrete constructions.

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Rock-Filled Concrete - development, investigations and ...

Apr 30, 2008  A new type of concrete has been under development in China called Rock-Filled Concrete (RFC). Based on Self-Compacting Concrete (SCC) technology, engineers have been working on the RFC system since it was first developed in 2003. It has been employed in a number of hydraulic engineering structures already, in China. RFC is produced by pouring ...

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Rock-Filled Concrete - development, investigations and ...

A new type of concrete has been under development in China called Rock-Filled Concrete (RFC). Based on Self-Compacting Concrete (SCC) technology, engineers have been working on the RFC system since it was first developed in 2003. It has been employed in a number of hydraulic engineering structures already, in China.

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Experimental Investigation on Rock Filled Self-Compacting ...

Dec 06, 2020  EXPERIMENTAL PROCEDURE. The cement, sand and coarse aggregates were weighted according to the mix proportion of 1:1.8:1.7. In order to study the effect on fresh concrete properties in SCC the rock gravel is added in concrete at bed level. To this dry mix the required quantity of water was added and thoroughly mixed.

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Pilot Study on Vibrated Rock-filled Concrete Request PDF

A new type of concrete named RFC (rock-filled concrete), which was based on the technology of SCC (self-compacting concrete), was developed in 2003, and it has already been employed in hydraulic ...

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Filling Capacity Evaluation of Self-Compacting Concrete in ...

Rock-filled concrete (RFC) [] is a new type of mass concrete and it is formed by filling self-compacting concrete (SCC) into the voids between a pre-placed assembly of rock grains.SCC has high flowability, and gravity alone can quickly fill the pores of the assembly of large rocks more than 300 mm in grain size.

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Filling capacity analysis of self-compacting concrete in ...

Feb 10, 2020  As a new technology for mass concrete construction in recent years, rock-filled concrete (RFC) is developed on the basis of self-compacting concrete (SCC) technology and is mainly comprised of the following two steps: stacking rocks to form a skeleton structure and pouring SCC.

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Cheap Mix Design of the Rock-Filled Concrete Materials ...

Rock-filled concrete (RFC) is an innovative dam construction material that has been developed quickly in China since 2003. The concrete is produced by pouring the Self-compacting concrete (SCC ...

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Estimating the workability of self-compacting concrete in ...

May 25, 2020  A method is proposed in this paper to estimate the workability of self-compacting concrete (SCC) in different mixing conditions with different mixers and mixing volumes by recording the mixing process based on deep learning (DL). The SCC mixing videos were transformed into a series of image sequences to fit the DL model to predict the SF and VF values of SCC, with four groups in total

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Cement Standards and Concrete Standards

ASTM's cement and concrete standards are instrumental in the evaluation and testing of concrete, cement, and aggregates. Concrete can have different properties depending upon the mixture that is used in creating it, which contains cement, chemical admixtures, and aggregates.

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Plastic viscosity of fresh concrete – A critical review of ...

Abstract Rheological properties of fresh concrete, namely plastic viscosity and yield stress, are critical for the concrete industry because they affect placement and workability. Moreover, these rheological properties influence the productivity and quality of concrete, including mechanical properties and durability. Therefore proper characterization of these properties is needed to control ...

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Analysis of self-compacting concrete workability based on ...

Abstract The movement of self-compacting concrete (SCC) during mixing reflects its workability. Therefore, the SCC workability can be quantified by analyzing mixing images. In this study, eight concrete specimens with different workabilities were produced in a twin-shaft mixer. A smart phone was used to record all the mixing processes.

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Experimental study on the creep behaviour of rock-filled ...

Oct 20, 2018  In 2005, a new construction method called rock-filled concrete (RFC) was developed by combining the self-compacting ability of self-compacting concrete (SCC) and prepacked aggregate concrete. SCC, first developed in Japan in the late 1990s, was a major breakthrough in building construction owing to its good flowability, self-compacting ability ...

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Simulation of thermal stress and control measures for rock ...

Mar 01, 2021  The rock-filled concrete (RFC) technology is a new type of mass concrete construction technology that is developed based on SCC . It breaks through the limitations of conventional mass concrete construction technologies by fully utilizing the primary mining stones or large stones in excavated materials (usually larger than 30 cm, up to 1 m) to ...

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Concreting methods that produce low carbon - CORE

A new type of concrete named rock-filled-concrete (RFC), which was based on the technology of self-compacting concrete (SCC), has already been employed in hydraulic engineering structures. The construction technology of RFC mainly consists of two processes: filling the working space with large scale rock mass and pouring the SCC into the pre ...

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Experimental Investigation on Rock Filled Self-Compacting ...

Dec 06, 2020  Fig 3 Bar chart showing split tensile test results. CONCLUSIONS. As a new kind of concrete, RFC performs satisfactorily in the early age and after hardening, which could satisfy the requirement of hydraulic engineering project, especially in the massive concrete construction because of its simple execution, low heat of hydration, low cost, and so on of RFC, such as drying and

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Filling Capacity Evaluation of Self-Compacting Concrete in ...

Rock-filled concrete (RFC) [] is a new type of mass concrete and it is formed by filling self-compacting concrete (SCC) into the voids between a pre-placed assembly of rock grains.SCC has high flowability, and gravity alone can quickly fill the pores of the assembly of large rocks more than 300 mm in grain size.

get price

Estimating the workability of self-compacting concrete in ...

May 25, 2020  A method is proposed in this paper to estimate the workability of self-compacting concrete (SCC) in different mixing conditions with different mixers and mixing volumes by recording the mixing process based on deep learning (DL). The SCC mixing videos were transformed into a series of image sequences to fit the DL model to predict the SF and VF values of SCC, with four groups in total

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A Study on Rock-Filled Concrete Construction in China 090216

ABSTRACT: Rock-Filled Concrete (RFC) is a new type of concrete which employs Self-Compacting Concrete (SCC) technology. RFC is produced by pouring ready-mixed SCC into the voids of large chunks of rock with the minimum size of 300 mm in a formwork. These large rocks are typically obtained near the dam sites without the need for crushing.

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A Study on Adiabatic Temperature Rise Test and Temperature ...

Oct 21, 2018  According to the mix proportions shown in Table 1, self-compacting concrete is mixed and tested in accordance with SL352-2006 Test Regulations for Hydraulic Concrete.The adiabatic temperature rise of SCC reaches ca. 95% of the final adiabatic temperature rise on the 5th day of testing.

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基于双轴图像的自密实混凝土工作性能分析

Journal of Advanced Concrete Technology, 2003, 1(1):1-5. [2] AN X H, WU Q, JIN F, et al. Rock-filled concrete, the new norm of SCC in hydraulic engineering in China[J]. Cement and Concrete Composites, 2014, 54:89-99. [3] WU Q, AN X H. Development of a mix design method for SCC based on the rheological characteristics of paste[J].

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Home of Southern Crushed Concrete: Texas Owned Since 1991

Southern Crushed Concrete (SCC) is a Texas-owned company established in 1991. With the use of practical and inexpensive methods, SCC is able to produce recycled concrete for a variety of construction projects throughout Southeast Texas. More Info.

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Plastic viscosity of fresh concrete – A critical review of ...

Abstract Rheological properties of fresh concrete, namely plastic viscosity and yield stress, are critical for the concrete industry because they affect placement and workability. Moreover, these rheological properties influence the productivity and quality of concrete, including mechanical properties and durability. Therefore proper characterization of these properties is needed to control ...

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Impact Response of Preplaced Aggregate Fibrous Concrete ...

This research aimed to study the impact response of topology optimized hammerhead pier beam (HPB) based on the density approach. The HPB is prepared with the concept of preplaced aggregate fibrous concrete (PAFC) comprising two primary approaches; first, the coarse aggregate and fiber are prepacked into the designed formwork. Second, the gaps between the aggregate and fiber are filled

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School of Civil Engineering Tsinghua University

An Xuehui, Huang Miansong, Zhou Hu, Jin Feng Rock-Filled concrete in China-Self-compacting concrete for massive concrete,Proc. PRO 65 SCC’2009, RILEM, 615-627, Beijing, 2009 48. Wang Qiang,Wang Jinting,Chi Fudong,Jin Feng,Zhang Chuhan,Real-time dynamic hybrid testing for soil-structure interaction analysis,Proc. 3rd AESE,San ...

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urn:nbn:se:kth:diva-179768 : Some aspects of rock-filled ...

The study addresses several aspects of Rock-Filled Concrete (RFC) – a new construction material developed for use in hydraulic structures. Some of the latest results of compressive strength, tensile strength and compaction level of the material are presented.

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Hai Chao Wang Scientific.Net

Abstract: In order to study the influence of large size aggregate on self-compacting rock-filled concrete, the compactness between self-compacting concrete (SCC) and rocks, as well as the whole workability of self-compacting rock-filled concrete, the experimental test in the present paper was carried out on the 500-ton electro-hydraulic serve ...

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Concreting methods that produce low carbon - CORE

A new type of concrete named rock-filled-concrete (RFC), which was based on the technology of self-compacting concrete (SCC), has already been employed in hydraulic engineering structures. The construction technology of RFC mainly consists of two processes: filling the working space with large scale rock mass and pouring the SCC into the pre ...

get price