Using micro-XRF to characterize chloride ingress through cold joints in 3D printed concrete [0.03%]
利用微X射线荧光法表征冷接头处氯离子在3D打印混凝土中的渗入
Paula Bran-Anleu,Timothy Wangler,Venkatesh N Nerella et al.
Paula Bran-Anleu et al.
Digital fabrication methods with concrete have been rapidly developing, with many problems related to component production and material control being solved in recent years. These processes produce inherently layered cementitious components...
Dimensional stability of cement paste and concrete subject to early-age carbonation curing [0.03%]
早龄期二氧化碳养护条件下水泥净浆与混凝土的体积稳定性研究
Xiangping Xian,Chad Logan,Yixin Shao
Xiangping Xian
Early-age carbonation curing of concrete is receiving more interest in terms of performance improvement and emission reduction. However, the volume change of cement-based products subject to carbonation curing may become a concern because o...
Erich Wieland,George Dan Miron,Bin Ma et al.
Erich Wieland et al.
Steel is used as reinforcement in construction materials and it is also an important component of cement-stabilized waste materials to be disposed of in deep geological repositories for radioactive waste. Steel corrosion releases dissolved ...
Multiscale micromechanics modeling of plant fibers: upscaling of stiffness and elastic limits from cellulose nanofibrils to technical fibers [0.03%]
植物纤维的多尺度细观力学建模：从纤丝到技术纤维的刚度和弹性极限的多尺度分析
Markus Königsberger,Markus Lukacevic,Josef Füssl
Markus Königsberger
The mechanical properties of natural fibers, as used to produce sustainable biocomposites, vary significantly-both among different plant species and also within a single species. All plants, however, share a common microstructural fingerpri...
Does carbon footprint reduction impair mechanical properties and service life of concrete? [0.03%]
减少碳足迹会损害混凝土的机械性能和使用寿命吗？
Kiran Ram,Marijana Serdar,Diana Londono-Zuluaga et al.
Kiran Ram et al.
The aim of this study is to evaluate how much the changes in the concrete mix design, which enable carbon footprint reduction, are impacting mechanical properties and predicted service life of concrete structure. The starting point of this ...
A long-term study on structural changes in calcium aluminate silicate hydrates [0.03%]
钙铝硅酸盐水合物结构变化的长期研究
Sonya Barzgar,Yiru Yan,Mohamed Tarik et al.
Sonya Barzgar et al.
Production of blended cements in which Portland cement is combined with supplementary cementitious materials (SCM) is an effective strategy for reducing the CO2 emissions during cement manufacturing and achieving sustainable concrete produc...
A method for the mix design of low carbon concrete towards industrial production [0.03%]
面向工业生产的低碳混凝土配合比设计方法研究
Federica Boscaro,Robert J Flatt
Federica Boscaro
The introduction of newly developed blended cements into the mass market is essential to ensure an effective reduction of the carbon footprint related to cement production. To facilitate this process, formulating mix proportions using paste...
Porewater compositions of Portland cement with and without silica fume calculated using the fine-tuned CASH+NK solid solution model [0.03%]
基于精优化CASH+NK固溶体模型的硅灰火山灰水泥孔溶液组成计算
George Dan Miron,Dmitrii A Kulik,Barbara Lothenbach
George Dan Miron
The CASH+ sublattice solid solution model of C-S-H aims to predict the composition of C-S-H and its ability to take up alkalis. It was originally developed for dilute systems with high water-solid ratios, and thus in this paper further opti...
The effect of paste composition, aggregate mineralogy and temperature on the pore solution composition and the extent of ASR expansion [0.03%]
组成材料、骨料矿物学和温度对孔隙溶液成分及ASR膨胀程度的影响
Mahsa Bagheri,Barbara Lothenbach,Karen Scrivener
Mahsa Bagheri
The reaction kinetics of the alkali silica reaction depends on the composition of the pore solution. The evolution of the pore solution composition in different cement pastes and concretes was studied. Pastes containing silica fume or metak...
Durability of concretes exposed to high concentrations of CaCl2 and MgCl2 [0.03%]
接触高浓度CaCl2和MgCl2混凝土的耐久性
Nima Hosseinzadeh,Luca Montanari,Prannoy Suraneni
Nima Hosseinzadeh
In cold regions, calcium and magnesium chloride deicing salts damage concrete pavements due to the formation of certain deleterious chemical phases, including calcium oxychloride. While there is much research at a cement paste-scale, damage...