Results 21 to 30 of about 42,334 (260)

Experimental study on dynamic mechanical properties of concrete under sulfate attack

Frontiers in Materials
Research on the dynamic mechanical properties of concrete under sulfate attack is the basis for the reasonable design and performance evaluation of anti-explosion and impact resistance in concrete structures under the erosion environment.
Ruixue Liu, Xianbiao Mao, Bing Li, Yan Li, Lianying Zhang   +4 more
doaj   +1 more source

Prediction of concrete compressive strength due to long term sulfate attack using neural network

Alexandria Engineering Journal, 2014
This work was divided into two phases. Phase one included the validation of neural network to predict mortar and concrete properties due to sulfate attack. These properties were expansion, weight loss, and compressive strength loss.
Ahmed M. Diab, Hafez E. Elyamany, Abd Elmoaty M. Abd Elmoaty, Ali H. Shalan   +3 more
doaj   +1 more source

Evaluation of external sulfate attack (Na2SO4 and MgSO4): Portland cement mortars containing fillers

Revista IBRACON de Estruturas e Materiais, 2020
Sulfate attack is a term used to describe a series of chemical reactions between sulfate ions and hydrated compounds of the hardened cement paste. The present study aims to evaluate the physical (linear expansion, flexural and compressive strength) and ...
D. J. DE SOUZA, M. H. F. MEDEIROS, J. HOPPE FILHO   +2 more
doaj   +1 more source

Assessment of Mechanical Properties and Damage of High Performance Concrete Subjected to Magnesium Sulfate Environment

Advances in Materials Science and Engineering, 2017
Sulfate attack is one of the most important problems affecting concrete structures, especially magnesium sulfate attack. This paper presents an investigation on the mechanical properties and damage evolution of high performance concrete (HPC) with ...
Sheng Cang, Xiaoli Ge, Yanlin Bao
doaj   +1 more source

Current knowledge of external sulfate attack [PDF]

Advances in Cement Research, 2015
This paper offers an update of the current understanding of sulfate attack, with emphasis on the sulfates present in an external water source percolating through, and potentially reacting with, the cement matrix. The paper considers the explanations put forward to explain sulfate attack, both from a chemical and microstructural perspective. Similarly,
Whittaker, M, Black, L
openaire   +2 more sources

Effect of hoop restraint on the degradation behavior of cement paste exposed to sodium sulfate solution

Journal of Materials Research and Technology, 2023
Concrete filled steel tube (CFST) is an effective method to alleviate sulfate attack in saline soil environments. In this study, the effect of hoop restraint on the degradation behavior due to sulfate attack in ordinary Portland cement (OPC) paste and ...
Jierong Cao, Qingjun Ding, Chuansheng Xiong, Dongshuai Hou, Zuquan Jin, Jun Yang   +5 more
doaj   +1 more source

Noscale insights on structure and properties of C-(A)-S-H gel in cementitious materials under sulfate attack

Case Studies in Construction Materials
Sulfate attack poses a significant durability challenge to cementitious materials by degrading microporous hydration products. This study investigates the impact of sulfate attack on the structure and properties of C-(A)-S-H gels with varying Ca/Si and ...
Gaozhan Zhang, Jiahao Zhu, Jun Yang, Qingjun Ding, Dongshuai Hou, Fangxin Tu, Youbing Tu, Lige Qiao   +7 more
doaj   +1 more source

ALDOA Promotes Glycolysis and NLRP3/GSDMD Pyroptosis to Accelerate ALS Progression

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Amyotrophic lateral sclerosis (ALS) is characterized by progressive motor neuron degeneration. Glycolytic dysregulation is implicated in disease progression, yet the underlying mechanisms remain unclear. This study investigates how Aldolase A (ALDOA) drives ALS progression through glycolysis‐mediated motor neuron pyroptosis.
Kaixin Yan, Yan Jiang, Yuxuan Yong, Tianshuo Zhang, Niannian Zhang, Qianqian Zeng, Xue Gong, Li Meng, Fangfang Bi, Yongmin Liu   +9 more
wiley   +1 more source

Evaluation of external sulfate attack (Na2SO4 and MgSO4): Portland cement mortars containing siliceous supplementary cementitious materials

Revista IBRACON de Estruturas e Materiais, 2020
: Sulfate attack is a term used to describe a series of chemical reactions between sulfate ions and hydrated compounds of the hardened cement paste. The present study aims to evaluate the physical (linear expansion, flexural and compressive strength) and
Diego Jesus de Souza, Marcelo Henrique Farias de Medeiros, Juarez Hoppe Filho   +2 more
doaj   +1 more source

Rheumatologic Manifestations of Patients With Type B Insulin Resistance

Arthritis Care &Research, EarlyView.
Objective The objectives of this study were to identify laboratory and clinical features associated with type B insulin resistance (TBIR), a rare condition caused by autoantibodies that inhibit the insulin receptor, most frequently occurring in the setting of systemic lupus erythematosus (SLE), and to increase awareness of this rare, life‐threatening ...
S. Amara Ogbonnaya, Sandra G. Williams, Raphael A. Kirou, Marissa Lightbourne, Rebecca J. Brown   +4 more
wiley   +1 more source