materials-logo

Journal Browser

Journal Browser

Characterization, Applications and New Technologies of Civil Engineering Materials and Structures, 2nd Edition

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

Deadline for manuscript submissions: 20 July 2024 | Viewed by 2558

Special Issue Editors


E-Mail Website
Guest Editor
School of Civil Engineering, Hebei University of Engineering, Handan 056038, China
Interests: road engineering; asphalt mixture damage mechanics; fracture performance evaluation and characterization of civil materials; multiscale modeling of asphalt mixture; application of digital image processing technology in asphalt mixture
Special Issues, Collections and Topics in MDPI journals
College of Traffic & Transportation, Chongqing Jiaotong University, Chongqing 400074, China
Interests: road engineering; construction and demolition waste; coarse/fine aggregate; polymer concrete; unbonded granular material; dynamic response; discrete element method
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Civil materials and structures are essential to engineering, but are very vulnerable to harsh environments, freeze–thaw actions, loading, etc. These factors can cause damage to civil structure and infrastructure by exerting negative influences on the mechanical and functional properties of civil materials (e.g., asphalt and cement concretes). With the continuous development of large-scale infrastructure maintenance, accurate, reasonable and efficient mechanical behavior evaluation and performance prediction of civil materials and structures have become the key to improve the service durability and intelligent maintenance management for infrastructure.

The multi-component composition, multi-scale characteristics and multi-field dependence of civil materials lead to extremely complex mechanical behaviors. A phenomenological method based on empirical tests is an important means to understand and evaluate civil materials, but its low efficiency and high consumption cannot meet the design and application requirements of civil materials. Over time, numerical simulation has become an important tool to study and understand the mechanical behavior of civil materials and structures, including the finite element method (FEM), discrete element method (DEM), molecular dynamics simulation (MD), etc. In addition, the rapid development of numerical simulation has greatly promoted the modeling and simulation of civil materials. Artificial intelligence is known for including powerful computational techniques and is now being used more frequently by civil engineers to solve real problems related to civil materials and structures. This field is under fast development and numerous novel technologies have been proposed to characterize and evaluate the performance of civil materials and structures.

After the success of the Special Issue of Materials on “Characterization, Applications and New Technologies of Civil Engineering Materials and Structures”, we are delighted to introduce this second edition.

The aim of this Special Issue is to bring together cutting-edge research and application, and to share, present, and discuss the innovative materials, structures and characterization methods that may help us to further develop the technology used in civil engineering. Submissions of original research and review articles are welcome.

Dr. Wensheng Wang
Dr. Qinglin Guo
Dr. Jue Li
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

  • civil engineering
  • cementitious materials
  • asphalt materials
  • artificial intelligence
  • new modeling and simulations
  • material design
  • performance prediction
  • construction
  • applications

Related Special Issue

Published Papers (3 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

Jump to: Review

16 pages, 3180 KiB  
Article
Freeze–Thaw Damage Characterization of Cement-Stabilized Crushed Stone Base with Skeleton Dense Gradation
by Rui Xiao, Baoping An, Fei Wu, Wensheng Wang, Yi Sui and Yinghan Wang
Materials 2024, 17(6), 1228; https://doi.org/10.3390/ma17061228 - 07 Mar 2024
Viewed by 573
Abstract
The skeleton dense graded cement-stabilized crushed stone base is a widely used material for road construction. However, this material is susceptible to freeze–thaw damage, which can lead to degradation and failure, for which there is still a lack of an in-depth understanding of [...] Read more.
The skeleton dense graded cement-stabilized crushed stone base is a widely used material for road construction. However, this material is susceptible to freeze–thaw damage, which can lead to degradation and failure, for which there is still a lack of an in-depth understanding of the freeze–thaw damage characteristics. This study aims to assess the mechanical performance and the freeze–thaw damage characteristics of the cement-stabilized crushed stone base with skeleton dense gradation based on a mechanical test and acoustic technology in a laboratory. There is a gradually increasing trend in the mass loss rate of the base material with an increase in freeze–thaw cycles. The curve steepens significantly after 15 cycles, following a parabola-fitting pattern relationship. The compressive strength of the cement-stabilized crushed stone base also decreased with a parabola-fitting pattern, and the decrease rate may accelerate as the freeze–thaw cycles increase. The resilience modulus of the base material decreased with increasing freeze–thaw cycles, following a parabolic trend. This suggests that the material’s resistance to freeze–thaw damage decreases with increasing cycles. The ultrasonic wave velocity decreased with increasing freeze–thaw cycles, exhibiting a parabolic trend. This decline can be attributed to microcracks and defects developing within the material, offering insights for monitoring and predicting its service life. The damage progression of the cement-stabilized crushed stone base was found to occur in three stages: initial, stationary, and failure. The duration of stage I increased with freeze–thaw cycles, while the duration of stage III decreased. The findings provide valuable insights into the mechanisms and processes of freeze–thaw damage in a cement-stabilized crushed stone base with skeleton dense gradation. Full article
Show Figures

Figure 1

17 pages, 3383 KiB  
Article
The Impact of Vegetable Fibres on the Shrinkage and Mechanical Properties of Cob Materials
by Aguerata Kabore and Claudiane M. Ouellet-Plamondon
Materials 2024, 17(3), 736; https://doi.org/10.3390/ma17030736 - 03 Feb 2024
Viewed by 624
Abstract
This study examined the shrinkage rate and mechanical properties of cob samples. Cob is a natural building material composed of clay, water, and varying amounts of plant fibres. The red and beige cob materials in this study containing 3% and 6% wheat fibres [...] Read more.
This study examined the shrinkage rate and mechanical properties of cob samples. Cob is a natural building material composed of clay, water, and varying amounts of plant fibres. The red and beige cob materials in this study containing 3% and 6% wheat fibres were manufactured by hand with clay, bulk fibres (short and long fibres), and a 25% water ratio (water/clay) in order to make their manufacture and use on construction sites feasible and simple. The reference samples were mixed with clay, 25% water, and 0% wheat fibre. The mechanical properties were assessed through compression and flexural tests after 28 and 120 days. The results showed that the fibre addition decreased the bulk density of the composites from 1902 kg/m3 to 1264 kg/m3. The compressive strength increased from 1.8 MPa to 4.57 MPa for the red clay samples and from 1.65 MPa to 4.61 MPa for the beige clay samples at 28 days. The compressive strength of each mixture decreased slightly with age for the red and beige clay samples, respectively. Conversely, the flexural strength increased with age for the samples reinforced with 3% and 6% fibres. The results also showed that the cob samples can deform without breaking. Increasing the fibre content in the mix resulted in a significant reduction in the shrinkage rate and an increase in the mass loss rate during thermogravimetric analysis. This analysis showed a total mass loss of approximately 5.64%, 6.12%, and 44.87% for the red clay, beige clay, and fibres, respectively. An average volume shrinkage of 1% was observed for the samples with 6% fibre content. The cob discussed in this article can be used as a filling material. In large quantities, it can be made by hand, with feet protected by boots, or with the use of a mixer. The environmental benefits are considerable, as the raw materials are renewable, and the manufacturing process is less energy-intensive. Full article
Show Figures

Graphical abstract

Review

Jump to: Research

18 pages, 2848 KiB  
Review
Synthesis and Modification of Polycarboxylate Superplasticizers—A Review
by Yuchen Xia, Wei Shi, Shuncheng Xiang, Xin Yang, Ming Yuan, Huan Zhou, Haotian Yu, Tingxiang Zheng, Jiake Zhang, Zhen Jiang and Liangjun Huang
Materials 2024, 17(5), 1092; https://doi.org/10.3390/ma17051092 - 27 Feb 2024
Viewed by 987
Abstract
The molecular-scale structural changes in polycarboxylic superplasticizer (PCE) can influence dispersion and water retention. Polycarboxylate superplasticizer, synthesized using different methods, may alter dispersion and water-reducing effects. The synthesis of PCE involves creating a novel macromolecular monomer with a controllable molecular mass, adjustable lipophilic, [...] Read more.
The molecular-scale structural changes in polycarboxylic superplasticizer (PCE) can influence dispersion and water retention. Polycarboxylate superplasticizer, synthesized using different methods, may alter dispersion and water-reducing effects. The synthesis of PCE involves creating a novel macromolecular monomer with a controllable molecular mass, adjustable lipophilic, and hydrophilic moieties, as outlined in this study. This article reviews processes for synthesizing polycarboxylates and identifies the optimal method through orthogonal experiments to produce a modified polycarboxylate superplasticizer (PCE-P). The study investigated the effects of different PCE types and concentrations on the surface tension, fluidity, and ζ potential of cement paste. PCE-P, synthesized at room temperature, showed comparable performances in initial hydration and conversion rate in cement to PCE synthesized at high temperatures. PCE-P exhibited an increased slump but had a wider molecular weight distribution and longer main and side chains, leading to a 24.04% decrease in surface tension, indicating a good dispersibility. Full article
Show Figures

Figure 1

Back to TopTop