Results 21 to 30 of about 23,882 (312)

Performance of sustainable concrete incorporating recycled polyethylene terephthalate (pet) granules [PDF]

open access: yes, 2023
The use of wastes as a supplementary material in concrete manufacturing is of great interest due to the potential cost savings, preservation of natural resources and reduction in environmental pollution.
Kangavar, Mohammad Eyni
core   +1 more source

Mechanical Performance of Concrete Made with Recycled Aggregates from Concrete Pavements

open access: yesAdvances in Materials Science and Engineering, 2020
This research aims at analysing the mechanical performance of concrete with recycled aggregates from concrete pavements. First, the characteristics of various natural and recycled aggregates used in the concrete were thoroughly analysed.
Yancong Zhang, Lingling Gao, Wei Bian
doaj   +1 more source

Mechanical Properties Test and Strength Prediction on Basalt Fiber Reinforced Recycled Concrete

open access: yesAdvances in Civil Engineering, 2021
In order to study the mechanical properties of basalt fiber reinforced recycled concrete (BFRRC), nine groups of tests are designed with three different replacement rates of recycled aggregates (40%, 70%, and 100%) and volume fraction of basalt fibers (0.
Min Huang   +3 more
doaj   +1 more source

Quality Improvement of Recycled Aggregate Concrete using Six Sigma DMAIC Methodology [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2020
Recycled aggregates (RA) are obtained from construction and demolished waste, laboratory crushed concrete and concrete waste at RMC plants. The concrete made from recycled aggregate is known as recycled aggregate concrete.
Suhas Vijay Patil   +2 more
doaj   +1 more source

Recycled Flexible Resins in Concrete [PDF]

open access: yesPolymer Journal, 1997
Depolymerization of poly(ethylene terephthalate) (PET) waste was performed in presence of manganese acetate catalyst. Different ratios of diethylene glycol (DG) to propylene glycol (PG) was used for glycolysis. The weight ratio of PET to the glycols mixture was 1:0.65. The hydroxyl value of the glycolyzed products were determined and the amount of free
Abdel-Azim, Abdel-Azim A.   +1 more
openaire   +1 more source

Study on Mechanical and Shrinkage Properties of High Belite Sulphoaluminate Cement-Based Green Recycled Aggregate Concrete

open access: yesCrystals, 2021
Green recycled aggregate concrete (RAC) with high strength and low shrinkage is prepared based on recycled coarse aggregate produced by the particle-shaping and aggregate-strengthening method and green low-carbon new cement.
Zexin Yu   +6 more
doaj   +1 more source

Prediction of compressive strength of general-use concrete mixes with recycled concrete aggregate [PDF]

open access: yes, 2021
This paper presents the mechanical behaviour of concrete mixes made with recycled aggregate by replacing the natural aggregate with crushed concrete from pavement demolition.
Sabău, Marian, Remolina Duran, Jesús
core   +1 more source

The influence of recycled concrete aggregate on the properties of concrete

open access: yesMATEC Web of Conferences, 2018
Use of Recycled Coarse Aggregate (RCA) in concrete can be described in terms of environmental protection and economy. This paper deals with the mechanical properties of concrete compressive strength, splitting tensile strength, modulus of elasticity, and
Mohammed Nisreen   +2 more
doaj   +1 more source

Impact Properties of Recycled Aggregate Concrete with Nanosilica Modification

open access: yesAdvances in Civil Engineering, 2020
The optimal soaking time and nanosilica concentration were chosen by the physical properties of the nanosilica-modified recycled aggregate. Recycled aggregate concrete (RAC) and nanosilica recycled aggregate concrete (SRAC) were fabricated by using ...
Xingguo Wang   +4 more
doaj   +1 more source

Investigating the influence of parent concrete on mechanical properties of recycled concrete [PDF]

open access: yesمهندسی عمران شریف, 2022
One of the most significant concerns of recent years among scientists has been related to waste management actions and policies. Unfortunately, landfills are filled with various debris and demolition from old building including waste concrete, glass ...
H. Salehi, N. Biglarijoo, H. Barkhordari
doaj   +1 more source

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