The fine aggregate used in the concrete, ie recycled and conventional is 100 percent natural The recycled aggregate are collected from four sources all demolished structur For both types of concrete ie M-20 and M-25, w/c ratio, maximum size of aggregate and mix proportion are kept constant
Reclaimed and recycled asphalt : Where is the payoff?
mix, with addition of plastic aggregate replacing conventional aggregate up to certain 20% gives strength with in permissible limit Modified concrete casted using plastic aggregate as a partial replacement to coarse aggregate shows 10 % it could be satisfy as per IS cod
Compressive strength of concrete with recycled glass as ,
Nov 05, 2014· T1 - Compressive strength of concrete with recycled glass as partial aggregate replacement AU - Hamid, Roszilah AU - Zubir, M A PY - 2015 Y1 - 2015 N2 - In this study, recycled glass is used to replace the natural fine aggregate in different mix proportions to obtain the optimum combination that will produce the highest strength
(PDF) Effect of Waste Plastic as Partial Replacement of ,
Much of it is not recycled, and ends up in landfills or as litter on land, in waterways and the ocean , Zainab Z Ismail , Enas A AL-Hashmi, “Use of waste plastic in concrete mixture as aggregate replacement”, Volume 0956-053X/[email protected] 2007  Raghatate Atul M, “Use of plastic in concrete to improve its properties”,Volume1 .
Public Roads - The Use of Recycled Materials in Highway ,
In this study, recycled high-density polyethylene (HDPE) was used to replace from 20 to 40 percent of fine aggregate by volume (75 to 15 percent by total volume) in a lightweight concrete mix Compressive strengths were reduced when either level of HDPE was used
The Use of Recycled Concrete Aggregates (RCA) for ,
cylinders was conducted according to specifications ASTM C39 The 47B mix design was used in all combined aggregate gradations The description of the proportioned mix designs and test results are shown in Table 1 Table 1 Description of Proportioned Mix Designs and Test Results The Use of Recycled Concrete Aggregates (RCA) for Temporary Pavements
Use of waste plastic in concrete mixture as aggregate ,
At higher levels of coarse aggregate replacementMix proportioning of recycled aggregate concrete will depend on the percentage replacement of coarse aggregate by recycled aggregate shape and texture of the recycled aggregate2 and 6 The addition of a fly ash can be used to increase workability without increasing the mix ,
Recycled Glass as Aggregate for Architectural Mortars ,
Jun 23, 2017· The expansion increases with the dosage of recycled glass in the mix, but also at the 100% of gravel replacement with waste glass it remains lower than the limits prescribed by the rule for classifying the aggregate as reactive (at t = 14 days the expansion must be less than 01%), both with and without the hydrophobic admixture (Fig 9)
Casting Concrete With Recycled Plastic Aggregate: 5 Steps
Casting Concrete With Recycled Plastic Aggregate: One of the biggest challenges with recycling is plastic There's not much of a market for scrap plastic, so the profit margins on processing and reselling it are slim When oil prices dip, it becomes cheaper to make new plastic than to recycle exi.
Crushed Concrete Aggregate| Concrete Construction Magazine ,
Jun 30, 2011· The hardened concrete is crushed and graded to ASTM C33 #67 The mix used for the Green Mile Project is composed of 30% CCA and 70% limestone aggregate The mix includes a 40% replacement of portland cement with SCMs and uses recycled water from truck washout and ,
What are other alternatives for aggregates in concrete ,
1) EPS: Expanded Polystyrene plays a very unique role in concrete Research has shown that concrete with this material behaves very similarly to light weight concretes containing traditional aggregat This is believed to be the case because the .
The use of mixed waste recycled plastic and glass as an ,
Jan 01, 2018· Therefore, recycled plastic and recycled glass, when optimally blended, can be considered feasible to be used as an aggregate replacement in asphalt mixtures for flexible road pavements AB - One of the major problems with landfills is that they contain a ,
Concrete with crushed, graded and washed recycled ,
– The optimum concrete mix design using recycled construction waste was obtained by using a 50‐50 per cent mix of gravel and recycled aggregat Using recycled construction waste as a 100 per cent coarse aggregate replacement produces concrete with a lower compressive strength when compared to concrete made with aggregat
RECYCLED TIRES AS COARSE AGGREGATE IN CONCRETE - CDOT
focusing on tire chips as coarse aggregate replacement One concrete control mixture was designed, which well exceeds CDOT Class P concrete requirements The coarse aggregate component of the mixture was replaced in 100%, 50%, 30%, 20%, and 10% by volume using tire chips
Use of Recycled Aggregates in Construction - ccaaau
Recycled Aggregates Recycled Concrete Aggregate (RCA) Crushed sound and clean waste concrete of at least 95% by weight of concrete with typical total contamination lower than 1% of the bulk mass Class 1A RCA is a well graded RCA with no more than 05% content Partial replacement (30%) for natural aggregate in concrete for sidewalks.
Evaluation of Recycled Concrete for Use as Aggregate in ,
Evaluation of Recycled Concrete as Aggregate in New Concrete Pavements Research Report , replacement of coarse natural aggregate with RCA (0% to 45%), and percent replacement of portland , It was a goal during the mix process to make concrete
THE USE OF MIXED WASTE RECYCLED PLASTIC AND GLASS AS ,
the use of mixed waste recycled plastic and glass as an aggregate replacement in asphalt mixtures One of the major problems with landfills is that they contain a large amount of solid wast Waste plastics and glasses contribute greatly to this problem, and these materials need to be managed or recycled to extend the life of landfill sit
Recycled Plastic Waste Can Replace Blocks, Concrete For ,
Council for Scientific and Industrial Research (CSIR) says its research has shown that some waste plastic materials can be recycled to replace coarse aggregate in concrete and block moulding for the construction industry Coarse aggregate refers to the portion of the concrete which is made up of the larger stones contained in the mix
Only up to 10 to 20 percent fine RCA is beneficial The aggregate should be tested at several substitution rates to determine the optimal rate Often recycled aggregate is combined with aggregate when used in new concrete An example of a mix design using recycled aggregates in a pavement application is shown following table
Effect of Recycled Coarse Aggregate on Concrete Properties ,
The result of slump test were 101 cm as the highest number of slump, then when researcher added 35% of Recycled Aggregate in the mixture, the slump test value was drop to 841 Then, the result of slump test was keep on decreasing when the researcher added more recycled aggregate into mixture
Use of Recycled Tire in Concrete for Partial Aggregate ,
Use of Recycled Tire in Concrete for Partial Aggregate Replacement Muhammad B Waris, Nehal N Ali, and Khalifa S Al-Jabri Department of Civil and Architectural Engineering, College of Engineering, Sultan Qaboos University, PO
Recycled glass as a partial replacement for fine aggregate ,
partial replacement for fine aggregate in structural concrete is particularly attractive This project aimed to de-termine the level of glass replacement resulting in optimal compressive strength Three concrete samples were tested at 7 and 28 days, for glass replacement proportions of 15, 20, 25, 30 and 40% Compressive strength
Use of Recycled Tires as Partial Replacement of Coarse ,
natural aggregates and rubber were used for two test programs Test program I consisted of four concrete mixes: one control mix with no recycled shredded tire and three mixes with 10%, 15% and 20% replacement of natural aggregate by volume The recycled shredded tire used in test program I was not subjected to any surface modification treatment
Concrete aggregate alternatives - Appropedia: The ,
When vehicles tires reach the end of their usable life, they can still find some use as a replacement for course aggregate in concrete mix Crumb rubber is car or truck tires that are ground up between the sizes of 3 - 10 mm This mix has very poor compressive strength due to its high air content
Design of Normal Strength Concrete Mixtures with Recycled ,
use recycled concrete aggregates as replacement for natural aggregat Three mix design methods utilizing direct weight replacement, equivalent mortar replacement, and direct volume replacement are compared based on concrete workability, compressive strength, and elastic modulus A total of 42 mixes were made with different aggregate .
The Use of Mixed Waste Recycled Plastic and Glass as an ,
• To compare the compressive strength and Density of Recycled Plastics used as Coarse Aggregate for Constructional Concrete with the Conventional concrete • To know its applications in construction industry • To reduce the pressure on naturally availability materials by replacing it with Recycled plastic aggregate
Vol 2, Issue 3, March 2013 Recycled Plastics as Coarse ,
Seeking aggregates for concrete and to dispose of the waste from various commodities is the present concern Today sustainability has got top priority in construction industry In the present study the recycled plastics were used to prepare the coarse aggregates thereby providing a sustainable option to deal with the plastic waste 
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