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EVALUATING THE HYDRATION OF HIGH VOLUME FLY ASH MIXTURES USING CHEMICALLY INERT FILLERS [0.03%] 采用化学惰性填料评价高粉煤灰用量混合材的水化性能
Igor De la Varga,Javier Castro,Dale Bentz et al. Igor De la Varga et al.
Fly ash is frequently used as a replacement for cement in concrete. However, questions remain regarding the influence that fly ash has on the hydration of cement. This paper examines physical aspects (e.g., surface nucleation, cement partic...
Use of polypropylene fibers extracted from recycled surgical face masks in cement mortar [0.03%] 回收外科口罩聚丙烯纤维在水泥砂浆中的应用
Thwe Thwe Win,Pitcha Jongvivatsakul,Tidarut Jirawattanasomkul et al. Thwe Thwe Win et al.
The use of personal protective equipment (PPE), particularly single-use surgical face masks (FMs), has increased drastically owing to the ongoing Covid-19 pandemic. This study aimed to demonstrate the feasibility of utilizing recycled FM fi...
Effective recycling of disposable medical face masks for sustainable green concrete via a new fiber hybridization technique [0.03%] 一种新型纤维杂化技术有效回收一次性医用口罩用于可持续绿色混凝土研究
Wisal Ahmed,C W Lim Wisal Ahmed
Global public response to the COVID-19 (SARS-CoV-2) pandemic is highly focused on human health. However, conservationists have cautioned of unprecedented threats to the natural environment from a new type of non-biodegradable microplastic w...
Influence of pandemic waste face mask on rheological, physical and chemical properties of bitumen [0.03%] 疫情口罩对沥青流变性能、物理和化学性质影响的研究
Erkut Yalcin,Ahmet Munir Ozdemir,B Vural Kok et al. Erkut Yalcin et al.
Recently, COVID-19 has appeared as an international pandemic, leading to serious risks for humans. Using face masks is one of the most common measures in a wide-ranging prevention program that could control the COVID-19 dissemination. Face ...
Performance of concrete containing recycled masks used for personal protection during coronavirus pandemic [0.03%]
Marcin Koniorczyk,Dalia Bednarska,Anna Masek et al. Marcin Koniorczyk et al.
After the coronavirus outbreak, a tremendous amount of personal protective equipment has been produced and used by the health service and every human. Proper medical waste management becomes an important problem, which must be solved with a...
Yongshan Tan,Hongfa Yu,Shikuan Sun et al. Yongshan Tan et al.
Silica fume (SF) as an important supplementary cementitious material has been widely used in Portland cement, but few published articles have reported on the effect of SF on the performance and hydration mechanism of basic magnesium sulfate...
Experimental investigation on the long-term behaviour of prefabricated timber-concrete composite beams with steel plate connections [0.03%] 具有钢板连接的预制木材-混凝土复合梁的长期性能实验研究
Benkai Shi,Weiqing Liu,Huifeng Yang Benkai Shi
This paper presents the results of long-term experiments performed on three timber-concrete composite (TCC) beams. An innovative fabricated steel plate connection system, which consists of screws and steel plates embedded in concrete slabs,...
Liangsheng Qiu,Sufen Dong,Ashraf Ashour et al. Liangsheng Qiu et al.
Concrete structures in sewer systems, marine engineering, underground engineering and other humid environments are easily subjected to microbial attachment, colonization and, eventually, deterioration. With careful selection and treatment, ...
Simulation of the Influence of Intrinsic C-S-H Aging on Time-Dependent Relaxation of Hydrating Cement Paste [0.03%] 模拟水化水泥石内部C-S-H老化对松弛行为影响的试验与建模研究
X Li,Z C Grasley,E J Garboczi et al. X Li et al.
The viscoelastic/viscoplastic behavior of cement paste may occur due to intrinsic calcium silicate hydrate (C-S-H) viscoelasticity/viscoplasticity and cement grain dissolution during the hydration process. A numerical model that combines a ...
GROUT-CONCRETE INTERFACE BOND PERFORMANCE: EFFECT OF INTERFACE MOISTURE ON THE TENSILE BOND STRENGTH AND GROUT MICROSTRUCTURE [0.03%] 砂浆与混凝土界面粘结性能：界面上的水分对拔出强度和砂浆微结构的影响
I De la Varga,J F Muñoz,D P Bentz et al. I De la Varga et al.
Bond between two cementitious materials is crucial in applications such as repairs, overlays, and connections of prefabricated bridge elements (PBEs), to name just a few. It is the latter that has special interest to the authors of this pap...