Novel Cementitious Materials

Topic Information

Dear Colleagues,

Cementitious material is the artificially engineered material that is produced in the largest quantities. Many novel cementitious materials were developed and used in different industries, such as UHPC, ECC, geopolymers, some non-Portland cements, etc. They show many special and interesting properties that could be useful to satisfy the increasingly demanding requirements on mechanical and durability properties of infrastructures under heavy loads built in severe environments. Low-carbon cementitious material has been a hot research issue in recent years. The recycling of solid waste to make useful building materials is studied intensively. The relationship between their composition, microstructure, and properties has been under intensive study in recent decades. Therefore, this Topic invites the submission of works related to the preparation and microstructural characteristics of novel cementitious materials, as well as their properties and applications in different fields. The Topic may be very useful for readers to gain a greater understanding of novel cementitious materials. For the authors, this Topic will be a good opportunity for publication after peer review by expert researchers of cementitious materials. Review articles by experts in the field will also be welcome for submission.

Prof. Dr. Peiyu Yan
Dr. Yao Luan
Dr. Chunsheng Zhou
Topic Editors

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Participating Journals

Journal Name	Impact Factor	CiteScore	Launched Year	First Decision (median)	APC
Buildings buildings	3.8	3.1	2011	14.6 Days	CHF 2600	Submit
CivilEng civileng	-	2.0	2020	37.7 Days	CHF 1200	Submit
Construction Materials constrmater	-	-	2021	25.9 Days	CHF 1000	Submit
Infrastructures infrastructures	2.6	4.3	2016	16.9 Days	CHF 1800	Submit
Materials materials	3.4	5.2	2008	13.9 Days	CHF 2600	Submit

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15 pages, 6320 KiB  

Open AccessArticle

Formation, Stability, and Crystallinity of Various Tricalcium Aluminate Polymorphs

by Simona Ravaszová, Karel Dvořák, Martin Boháč, Dalibor Všianský and Andrea Jančíková

Materials 2024, 17(3), 735; https://doi.org/10.3390/ma17030735 - 03 Feb 2024

Viewed by 683

Abstract

Tricalcium aluminate is an important phase of Portland clinker. In this paper, three polymorphs of C₃A were prepared by means of the solid-state synthesis method using intensive milling of the raw material mixture which was doped with various amounts of Na [...] Read more.

Tricalcium aluminate is an important phase of Portland clinker. In this paper, three polymorphs of C₃A were prepared by means of the solid-state synthesis method using intensive milling of the raw material mixture which was doped with various amounts of Na₂O and sintered at a temperature of 1300 °C for 2 h. The final products were evaluated through X-ray diffraction using Rietveld analysis. The effect of the Na dopant content on the change in the crystalline structure of tricalcium aluminate was studied. It was proven that the given preparation procedure, which differed from other studies, was close to the real conditions of the formation of Portland clinker, and it was possible to prepare a mixture of different polymorphs of calcium aluminate. Fundamental changes in the crystal structure occurred in the range of 3–4% Na, when the cubic structure changes to orthorhombic. At a dosage of Na dopant above 4%, the orthorhombic structure changes to a monoclinic structure. There are no clearly defined boundaries for the existence of individual C₃A phases; these phases arise at the same time and overlap each other in the areas of their formation at different Na doses. Full article

(This article belongs to the Topic Novel Cementitious Materials)

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