Basic Physical, Mechanical, Thermal and Hygric Properties of Concrete with Coarse Aggregates Fabricated from Recycled Concrete Pavements

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00350209" target="_blank" >RIV/68407700:21110/20:00350209 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1051/matecconf/202032201007" target="_blank" >https://doi.org/10.1051/matecconf/202032201007</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/matecconf/202032201007" target="_blank" >10.1051/matecconf/202032201007</a>

Result language

angličtina

Original language name

Basic Physical, Mechanical, Thermal and Hygric Properties of Concrete with Coarse Aggregates Fabricated from Recycled Concrete Pavements

Original language description

Concrete production unfavourably affects the environment due to high energy demands of cement production and consumption of limited natural resources. Therefore, waste utilization in fabrication of cementitious material is beneficial and legitimate. Significant reduction of environmental impact can be secured by utilization of various types of wastes or byproducts used for a partial substitution of cement binder or aggregates. However, the use of waste materials usually leads to deterioration of material properties of the designed composites. Therefore, it is very important to thoroughly investigate important materials properties to verify performance and practical usability of the newly designed materials. In this paper, three types of concrete mixes were designed. The reference concrete involved fine and coarse natural riverbed aggregates and two other mixes were designed using both, natural and recycled aggregates represented by crushed concrete paving cobbles. Concretes were tested in terms of basic physical properties (bulk density), mechanical properties (compressive strength), thermal properties (thermal conductivity, specific heat capacity, thermal diffusivity), and hygric properties (water vapour diffusion resistance factor, water vapour sorption at 97% RH, water absorption coefficient, moisture diffusivity) and experimentally determined data were compared and discussed. It was observed that materials properties of concretes with recycled aggregates are comparable with those of the reference concrete which is a promising fact from the environmental point of view.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

MATBUD’2020 – Scientific-Technical Conference: E-mobility, Sustainable Materials and Technologies

ISBN

978-2-7598-9108-5

ISSN

2261-236X

e-ISSN

—

Number of pages

7

Pages from-to

—

Publisher name

EDP Sciences

Place of publication

Les Ulis

Event location

Cracow

Event date

Oct 19, 2020

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000631255600007