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The Structure of Building Materials Obtained from Various Substances and Their Specialized Applications (Second Volume)

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Construction and Building Materials".

Deadline for manuscript submissions: closed (20 May 2023) | Viewed by 1348

Special Issue Editor

Prof. Dr. Magdalena Janus

E-Mail Website
Guest Editor
Faculty of Civil and Environmental Engineering, West Pomeranian University of Technology, Szczecin, al. Piastów 50, 70-311 Szczecin, Poland
Interests: photocatalysis; photoactive building materials; water treatment; titanium dioxide
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Building materials that should have additional features in addition to basic ones are increasingly sought after. Such parameters include, for example, additional hydrophobicity in the case of some plasters, superhydrophilicity in the case of some glasses or self-cleaning or disinfecting properties in the case of ceramic tiles. In addition, materials are introduced so that the final shape of the elements can be given by printing. Due to the decrease in natural resources, waste materials are used interchangeably in building materials, which allows materials to achieve different properties.

In this Special Issue, we would like to focus on new building materials, which as a result of modifications have gained new features, such as, for example, superhydrophilicity, superhydrophobicity, photoactivity, the possibility of use in 3-D printing and also new materials obtained through the addition of waste. Further, publications concerning physicochemical analysis or microstructure analysis of such materials will be welcome.

Prof. Dr. Magdalena Janus
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • modified building materials
  • photoactive materials
  • 3D printing
  • self-cleaning properties
  • hydrophobic properties
  • hydrophilic properties
  • sludge

Published Papers (1 paper)

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Research

10 pages, 2863 KiB  
Article
Experimental Study on Mechanical Properties of Concrete at Super-Early Age
by Qiuwei Yang, Yun Sun and Xi Peng
Materials 2022, 15(21), 7582; https://doi.org/10.3390/ma15217582 - 28 Oct 2022
Cited by 6 | Viewed by 1051
Abstract
Few studies have reported the cohesion and friction angle of concrete at a super early age. However, these two mechanical parameters are necessary to study the influence of engineering vibration on super-early-age concrete. In view of this, the mechanical properties of the super-early [...] Read more.
Few studies have reported the cohesion and friction angle of concrete at a super early age. However, these two mechanical parameters are necessary to study the influence of engineering vibration on super-early-age concrete. In view of this, the mechanical properties of the super-early age-concrete are investigated in this work by direct shear testing. Firstly, the shear strength of the super-early-age concrete is measured by the direct shear experiment under different normal pressures at different times. Secondly, the cohesion and friction angle of the super early age concrete are calculated according to the Mohr–Coulomb criterion of failure. To overcome the great discreteness and randomness in the measured data, a new robust regression analysis algorithm is presented to replace the traditional regression analysis method to obtain more reliable and reasonable mechanical parameters. According to the experimental and theoretical analysis results, it is found that the friction angles of the super early age concrete are located in the interval of [50°, 70°]. The cohesion of the concrete is about 78.7 kPa at the initial setting state and about 190.9 kPa at the final setting state, respectively. It has been shown that the cohesion of the concrete at a super-early age tends to increase rapidly with time. The method and test results of this work can be used as a reference for relevant engineering practice. Specifically, the proposed regression method can be extended to the data analysis of other mechanical parameters of concrete, as well as other brittle materials such as rock. The test results of early concrete cohesion and friction angle can be used to analyze the adverse effects of vibration on newly cast concrete members in pile driving and blasting engineering. Full article
(This article belongs to the Special Issue The Structure of Building Materials Obtained from Various Substances and Their Specialized Applications (Second Volume))
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