SCC is an innovative concrete that does not require any vibration to compact. The characteristic of SCC is the natural aggregate in 102030 SCC which is rapidly poured by concrete. The performance of SCC is evaluated with recycled coarse aggregate.
The optimum mix design of recycled concrete and rubber aggregate self compacting concrete was evaluated to optimize the fresh and hardened properties of the proposed self compacting concrete.
Self compacting concrete with coarse aggregate 35; self compacting concrete; glass powder; steel fiber; compressive strength; splitting tensile strength; flexural strength; 1 Introduction: self compacting concrete is a kind of high fluidity concrete, which can be spread and formed without mechanical vibration.
The purpose of this study is to explore the influence of recycled aggregate on the strength, permeability, acid corrosion resistance, chloride ion permeability and alkalinity of self compacting concrete, so as to provide useful information for practical engineering.
August 9, 2020018332 this study evaluated the durability of self compacting concrete made from recycled aggregate, which was used in pavement applications and affected the mixture developed.
The purpose of this topic is to explore the potential of industrial by-products in the production of self compacting mortar or concrete composites, and to discuss new opportunities in this field. Refer to Guney y Sari YD yalcin m tuncan A and Donmez 2010 recycling of foundry sand from high strength concrete.
The main purpose of this paper is to review the fresh and hardening properties of self compacting concrete with recycled aggregate partially replacing natural fine aggregate and or coarse aggregate. It can be concluded that waste tire rubber can be used as an alternative aggregate material for self compacting concrete.
Local concrete suppliers sell recycled concrete at very good prices. Since design compaction is almost impossible, it is very similar to crusher operation. No matter what you use, you need to quote self compacting quotation. Do I have a choice? What else can you do to ensure that the concrete slab placed on top of the fill does not crack or.
In developing countries, due to the rapid economic growth, industrialization and urbanization, construction and demolition wastes are treated as landfill sites, resulting in social environment and economic crisis. The purpose of this paper is to explore the possibility of using waste concrete to produce new concrete in Ethiopia.
August 6, 2020018332 this study evaluated the durability of self compacting concrete made of recycled aggregate, conducted permeability water absorption test and chloride ion penetration test, and compared with three kinds of recycled concrete of ordinary pavement concrete, and calculated the replacement percentage of RCA.
Corpus No. 55363012 sustainable development solutions for self compacting concrete with recycled aggregate article modani2014 self compacting CW Title Solutions for sustainable development of self compacting concrete with recycled aggregate authorp o modani and v m mohitkar Journal International Journal of civil and structural engineering year 2014 Volume 4.
This paper introduces the early results of a pilot project to produce and evaluate self compacting concrete using recycled aggregate instead of natural aggregate, and discusses that recycled aggregate is directly supplied by an industrial crushing plant where debris from building demolition is properly disposed of.
January 23, 2017018332 in the current work, three grades of self compacting concrete mixtures without steel fiber and containing steel fiber were developed using the compressible filler model to prove the conformity of the mixture, such as slump flow jring vrunnel and lbox test, and checked to meet the requirements of the European Union.
Key words: self compacting concrete; rubber concrete; recycled rubber aggregate substitute 1 brief introduction the number of waste tires of various vehicles is increasing rapidly, in fact, it has become one of the main ecological and environmental problems.
The main content of concrete is to reduce the amount of aggregate. Using recycled concrete instead of aggregate can not only reduce the consumption of natural resources, but also avoid the treatment of solid waste. Moreover, using recycled concrete to produce self compacting concrete is a way of energy saving and noise reduction in traditional construction industry.
For self compacting concrete published by Elsevier construction and building materials 2015, so far, there is no mixture design method that fully meets all the usual requirements, that is, widely applicable to various technical requirements, with strong sustainability and strong robustness.
Construction activities should minimize the interference to the environment. Self compacting is to achieve the effect of rationalization and labor saving in the process of concrete production and pouring. SCC is a kind of highly engineering material, which can meet the requirements of high fluidity and no segregation.
October 10, 2010 2019018332 Illinois recycled concrete aggregate characteristics and utilization as building materials, mix design method of self compacting recycled aggregate concrete and microstructure considering mortar adhesion in aggregate.
Recycled aggregate C is e. the recycled aggregate used is crushed and unwashed recycled concrete aggregate with nominal size of mm from construction and demolition waste recycling facilities. Natural coarse aggregate consisting of crushed granite with nominal size of MM is given for water absorption time.
The purpose of this study is to propose a new and simple method to design flow concrete, such as self compacting concrete with low content of cementitious materials, so as to reduce the carbon footprint. Different test methods were used to test the bulk density of aggregate mixture, and the compressive strength of WC was determined according to the target.
The use of recycled aggregate on concrete ice topic outlines a comprehensive study of the use of recycled aggregate as an alternative to commonly used natural aggregate in a wide range of concrete applications, including selected case studies and excellent sources of information for the interpretation of the standards and specifications described in this volume.
However, the extensive research on the use of recycled aggregate in the new generation of concrete is a relatively scarce field, so this study is a step forward, proving and encouraging the use of recycled aggregate in self compacting concrete to create a sustainable solution to ensure that.
The manufacture of special concrete (such as self compacting concrete) is still in the research stage, although the level of knowledge in this field is not perfect. This paper reviews the current and past research on the design of self compacting concrete using recycled concrete aggregate.
The use of recycled concrete aggregate RCA in self compacting concrete has the potential to reduce the environmental impact and financial costs associated with this increasingly popular type of concrete, but so far, research on the use of coarse RCA in self compacting concrete has been limited. The work described in this paper aims to build on existing knowledge in the field.
The purpose of this study is to evaluate the characteristics of recycled coarse aggregate concrete, especially its self compaction, and analyze the influence of recycled coarse aggregate RCA on the manufacture of self compacting concrete.
The performance of self compacting concrete (SCC) beams with recycled concrete aggregate as coarse aggregate were studied. The cross sections of all test beams were 220x320mm. The research parameters were rca0 and 50 shear span to effective height ratio 11522525 and web reinforcement ratio 0026051.
Recycled concrete coarse aggregate self compacting concrete recycled coarse aggregate recycled aggregate is a kind of aggregate which is not easy to be discarded. It is called recycled coarse aggregate RCA. It comes from the construction industry itself and has attracted great attention from all walks of life.
Concrete is the most widely used artificial material in the world since its invention. The wide application of this material leads to the continuous development of super high strength concrete and self compacting concrete recycled aggregate in industrial building concrete.
In recent decades, because of its unique ability to fill steel formwork and the impact of natural aggregate on the environment in the process of concrete production, self compacting concrete almost does not need mechanical compaction. Therefore, since its birth, self compacting concrete has been gradually welcomed as a sustainable development way to produce self compacting concrete.
This will significantly reduce the impact of construction and demolition waste on the environment and extract natural aggregates. In other words, the purpose of this work is to assess the feasibility of producing high-performance self compacting concrete at a lower cost.
The results show that 50 substitutes in three batches of M20 concrete show satisfactory fluidity and compressive strength; recycled aggregate; RMC hardened concrete; waste river sand; self compacting concrete.
Using RCA and GGBFS as natural aggregate and cement substitute respectively, the comprehensive effects of coarse and fine recycled aggregate and GGBFS on the properties of self compacting concrete were studied.
The application of recycled plastics in self compacting concrete is reviewed. The application of recycled plastics in self compacting concrete is summarized. It is pointed out that recycled plastics can be used as an alternative to NAS or fiber additives.
This project studies the performance of self compacting concrete with silica fume instead of cement, fly ash replacing fine aggregate and recycled coarse aggregate.
With the wide application of this material and the continuous development of recycled aggregate of ultra-high strength concrete and self compacting concrete, the use of recycled aggregate in industrial construction and demolition waste concrete is a hot spot in recent years, that is, the use of various types of recycled waste materials as aggregate in concrete is more and more widely produced.