Study to achieving a class of road concrete with slag powder addition at the cement mass and substitution with artificial aggregates

International Conference on Innovative Research - ICIR EUROINVENT 2019

Nicula, L.M.^1 ; Corbu, O.^1^2^3 ; Iliescu, M.^1

Faculty of Civil Engineering, Technical University of Cluj-Napoca, Memorandumului Street 28, Cluj-Napoca

400114, Romania^1

Research Institute for Construction Equipment and Technology, ICECON S.A., 266 Pantelimon Road, 2nd District, CP 3-33, Bucharest

021652, Romania^2

Center of Excellence Geopolymer and Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis, Kangar, Perlis

01000, Malaysia^3

关键词: Artificial aggregates;    Control mixtures;    Mortar mixes;    Natural aggregate;    Reduced volumes;    Road concretes;    Slag powder;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/572/1/012067/pdf
DOI  :  10.1088/1757-899X/572/1/012067

来源: IOP

【 摘 要 】

In order to notice the influence of slag in the form of powder used as an addition to the cement mass and the substitution of natural aggregates with artificial aggregates from crushed and sorted slag, first of all, mixtures of mortars were made for a reduced volume of material. In the mixes design of new road concrete, we have taken into account the results obtained on the most representative mortar mixes. We chose mixtures of mortar with 15% addition of slag powder in the cement mass and those in which the 0/4 mm natural aggregate was substituted in a ratio of 20%, 40%, and 60% with artificial aggregates of crushed and sorted slag from the by-products stockpiles resulting from the process of obtaining the cast iron in the furnaces. The intended objective is to obtain a BcR 5.0 road concrete class that can be used in all categories of traffic. From the results obtained on mortar and concrete mixtures, it can be seen that compressive strengths and flexural tensile strengths remain close both in mortars and in concretes. Also, the results show that the control mixture falls into the BcR5.0 road concrete class and the new mixtures are very close to it.