We have planned to publish a special issue of the Journal of Advanced Concrete Technology (JACT) to present the recent advances in understanding the combined effects of temperature and time on the properties of concrete, cementitious materials and concrete structures. Temperature has widely been recognised as an instrumental factor which affects the development of the fresh, mechanical and durability properties of concrete. On the same time, with the recent advents in cement and concrete technology, new binders materials emerge which are affected by temperature and time differently when compared to traditional cements and this could potential induce adverse consequences during design, production, construction and service life of concrete materials and structures. In addition to the above, ongoing climate crisis and change may result in unusual temperature observations that can affect the performance of materials and structures. It is therefore important to encapsulate the progress in understanding, predicting and monitoring the combined effects of temperature and time on the behaviour of concrete and cementitious systems. This special issue draws information and is particularly relevant to the works of RILEM TC 254-CMS and 287-CCS which investigate in detail the early-age behaviour of concrete as well as thermal and shrinkage cracking phenomena and fib TG 4.5 – TG 4.8 which investigate structural and durability properties of traditional and novel concretes as affected by temperature and time.
We aim to publish high-quality papers dealing with the following topics:

(a) Temperature effects on fresh, mechanical and durability properties of cementitious systems
(b) Effect of temperature and time on properties of cementitious systems with supplementary cementitious materials
(c) Effect of temperature and time on properties of systems with alternative binders, e.g. non-Portland cements, alkali-activated materials, etc.
(d) Maturity functions
(e) Methods/models to estimate temperature-time effects in concrete properties
(f) On-site and lab-based monitoring of temperature effects on concrete properties

After the submission of papers to this special issue, they will be evaluated through the standard refereeing process in JACT. We really appreciate your kind contribution to publishing your excellent research works in this special issue of JACT to promote international academic discussion on the development.

Please use the template, and state that the submission is for the above special issue in the manuscript notes when you submit it.

The first submission date (JACT System open for submissions): 14 November 2022
The final submission deadline (The last date until which JACT System will be open for new submissions): 14 May 2023

Call for pappers

Special issue on
“Recent Advances in High-Performance Fiber-Reinforced Geopolymer Composites for Resilient and Sustainable Construction”
Editors: Dr Behzad Nematollahi, Prof Kazuo Ichimiya, and Prof Minoru Kunieda

We have planned to publish a special issue of the Journal of Advanced Concrete Technology (JACT) to present the recent advances in the development and application of high-performance fiber-reinforced geopolymer composite (HPFRGC) for sustainable and resilient construction. One of the primary concerns of engineers in the 21st century is the simultaneous improvement of resilience and sustainability of civil infrastructure. High-performance fiber-reinforced cementitious composite (HPFRCC) is a unique class of fiber-reinforced concrete exhibiting a pseudo strain-hardening (PSH) behavior in tension after first cracking, accompanied by multiple cracking up to relatively high strain levels. The PSH behavior of HPFRCC leads to significant improvement of fracture toughness and energy absorption capacity of the material, which prevents catastrophic failure during extreme events, such as earthquakes and projectile impacts. However, high cement content is typically used in HPFRCC, resulting in high autogenous shrinkage, heat of hydration, and cost. In addition, the associated increase in the carbon emissions and embodied energy arising from the production of ordinary Portland cement (OPC) can compromise the sustainability credentials of HPFRCC. To tackle this issue, several studies have been conducted in recent years to develop HPFRGC as a sustainable alternative to HPFRCC by complete replacement of OPC with geopolymer. Geopolymers, including alkali-activated materials, are sustainable alternative binders to OPC. The development and application of HPFRGC are expected to simultaneously support the resilience and sustainability of our civil infrastructure.
We aim to publish high-quality papers dealing with, but not limited to, the following topics:

(a) Material design and manufacturing;
(b) Microstructure characterization;
(c) Rheological characterization;
(d) Mechanical properties and test methods;
(e) Durability performance;
(f) Intelligent functions (e.g. self-healing);
(g) Modelling and numerical simulations;
(h) Structural design and performance;
(i) Application in strengthening and repair;
(j) Application in 3D concrete printing.

After the submission of papers to this special issue, they will be evaluated through the standard refereeing process in JACT. We really appreciate your kind contribution to publishing your excellent research works in this special issue of JACT to promote international academic discussion on the development and application of HPFRGC for sustainable and resilient construction with experts.

Please use the template, and state that the submission is for the above special issue in the manuscript notes when you submit it.

The first submission date (JACT System open for submissions): 01 July 2022
The final submission deadline (The last date until which JACT System will be open for new submissions):31 March 2023