Effects of Adding Cement Admixtures on the Microstructure and Properties of Cement Materials
A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Construction and Building Materials".
Deadline for manuscript submissions: 20 August 2024 | Viewed by 4022
Special Issue Editors
Interests: recycle of industrial solid waste; cemented waste backfill; biological treatment of waste; MICP; detoxication of tailings
Special Issue Information
Dear Colleagues,
Cement, as the most widely used construction material, is often influenced by the addition of various additives, which can greatly improve its performance. With the increasing interest in additives, there have been significant advancements in the hydration process and microstructure of cement.
Additives play a crucial role in the production and utilization of modern cement. They can be utilized to meet diverse requirements, such as enhancing the strength of cement and concrete, adjusting the setting time of cement, and controlling the water requirements of concrete. In addition to these performance benefits, additives also contribute to reducing production costs and minimizing adverse environmental impacts.
This Special Issue aims to gather research papers and review articles that address the challenges associated with the application of additives in cement and concrete materials. We welcome research papers focusing on numerical simulations of additives, as well as manuscripts presenting experimental verification.
Dr. Ying Shi
Dr. Hongwei Wang
Guest Editors
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
- additives
- cement
- binder
- strength
- microstructure
Planned Papers
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: Binary and ternary blended Portland cements containing different types of rice husk ash.
Authors: Luis Miguel Ordoñez; María Victoria Borrachero; José Monzó; Lourdes Soriano; Jordi Payá
Affiliation: Instituto de Ciencia y Tecnología del Hormigón (ICITECH). Universitat Politècnica de València (Valencia, SPAIN)
Abstract: Rice husk ash (RHA) is agricultural waste with high silica content that has had proven technical feasibility as a pozzolanic material since the 1970s. Notwithstanding, its use in mortars and concrete is limited by the standards currently utilized in some countries where RHA production is high and the aforementioned pozzolanic material is not standardized. This is the case of Spain, one of the main rice producers in Europe. Nowadays, the high pressure placed on the Portland cement production sector to reduce energy use and CO2 emissions has given rise to a keen interest shown in mineral admixtures for cement manufacturing. In this research, we intend to establish the contribution of different RHA types to final blended Portland cement properties (symbol “H” was used to identify RHA in standardized cements). The experimental results demonstrated that RHA with good pozzolanic properties (large specific surface and high amorphous silica content) had to be limited to 10% cement replacement because of the severe reduction in workability at higher replacement percentages. RHA with lower reactivity, such as crystalline RHA, or fly ash (FA), can be used to prepare binary and ternary blended cements with reactive RHA. It is possible to design the following cements: CEM II/A-H and CEM II/A-(H-V) It would also be possible to design cement (CEM II/B-(H-V) with replacement values up to 30% and the same 28-day mechanical performance observed for the Portland cement without mineral addition.