Detail publikace

Philosophy of rational mixture proportioning of alkali-activated materials validated by the hydration kinetics of alkali-activated slag and its microstructure

BÍLEK, V. NOVOTNÝ, R. KOPLÍK, J. KADLEC, M. KALINA, L.

Originální název

Philosophy of rational mixture proportioning of alkali-activated materials validated by the hydration kinetics of alkali-activated slag and its microstructure

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

There are many highly variable approaches to mix proportioning of alkali-activated materials (AAMs), which considerably contribute to their great complexity and often incomparability of the obtained results. Therefore, this paper suggests one specific approach, based on the molarity of the activator and the volume fraction of the precursor. First, an inherently simple calculation procedure is introduced to obtain the weights of the raw ma-terials required to prepare a desired volume of AAM paste and possibly mortar or concrete. Second, the rationale for this approach is demonstrated using calorimetric experiments conducted on alkali-activated slag pastes, activated with sodium and potassium hydroxides, waterglasses, and carbonates in wide ranges of molarities. Third, the applicability and impact of the presented approach are discussed in-depth, considering practical ap-plications. The overall outcome is a complex set of information emphasizing the importance of molarity, pre-cursor volume fraction, and space-filling ability of the reaction products for different activators.

Klíčová slova

Calorimetry; Mixture proportioning; Microstructure; Hydration; Kinetics; Alkali activated cement; Granulated blast-furnace slag

Autoři

BÍLEK, V.; NOVOTNÝ, R.; KOPLÍK, J.; KADLEC, M.; KALINA, L.

Vydáno

9. 3. 2023

Nakladatel

PERGAMON-ELSEVIER SCIENCE LTD

Místo

OXFORD

ISSN

0008-8846

Periodikum

Cement and Concrete Research

Ročník

168

Číslo

107139

Stát

Spojené království Velké Británie a Severního Irska

Strany počet

15

URL

https://www.sciencedirect.com/science/article/pii/S0008884623000510

BibTex

@article{BUT183485,
  author="Vlastimil {Bílek} and Radoslav {Novotný} and Jan {Koplík} and Martin {Kadlec} and Lukáš {Kalina}",
  title="Philosophy of rational mixture proportioning of alkali-activated materials validated by the hydration kinetics of alkali-activated slag and its microstructure",
  journal="Cement and Concrete Research",
  year="2023",
  volume="168",
  number="107139",
  pages="15",
  doi="10.1016/j.cemconres.2023.107139",
  issn="0008-8846",
  url="https://www.sciencedirect.com/science/article/pii/S0008884623000510"
}