Results 41 to 50 of about 121,452 (195)
Advances in Civil Engineering, 2021 High autogenous shrinkage property is one of the disadvantages of ultra-high-performance concrete (UHPC), which may induce early age cracking and threaten the safety of concrete structure. In the present study, different dosages of calcium sulfoaluminate
Meimei Song +4 more
doaj +1 more source
Volume Stability of Cement Paste Containing Limestone Fines
Buildings, 2021 The common cause of cracking in cement paste is shrinkage due to different reasons, such as loss of water and chemical reactions. Incorporating limestone fines (LF) as a cement replacement can affect the shrinkage of the paste.
Jamal Khatib +3 more
doaj +1 more source
Structural Concrete, EarlyView.Abstract Cold weather conditions impose substantial constraints upon the performance and long‐term resilience of concrete materials. Alkali‐activated slag (AAS) presents itself as a promising substitute, exhibiting sustained hydraulic activity even when exposed to ambient conditions characterized by low temperatures.
Zeynep Bahçeci +3 more
wiley +1 more source
Influência do emprego de polímeros superabsorventes nas propriedades de materiais à base de cimento portland [PDF]
, 2012 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-graduação em Engenharia Civil, Florianópolis, 2009A retração autógena é um problema que atinge materiais de baixa relação a/c e alto teor de finos, como ...
Kumm, Talita Campos
core
Advances in Civil Engineering, 2023 In view of the poor accuracy and unsatisfactory effect of shrinkage compensation for concrete-filled steel tubular structures of large cross-sea bridge (CSTS-LCSB), a new shrinkage compensation technology for CSTS-LCSB is proposed.
Yi Zhao, Xiao Wu
doaj +1 more source
Materiales de Construccion, 2023 Alkali-activated slag (AAS) materials activated by NaOH or waterglass has been long-term criticized for the developed substantial shrinkage. To this regard, this paper explored MgO as both an activator and an expansive agent to prepare shrinkage-free ...
P. Chen +6 more
doaj +1 more source
Journal of Periodontal Research, EarlyView.Based on the available evidence, the application of platelet‐rich fibrin (PRF) following free gingival graft (FGG) and subepithelial connective tissue graft (SCTG) harvesting appears to be a promising approach for enhancing wound healing, minimizing postoperative complications, and reducing analgesic consumption. ABSTRACT This clinical narrative review
Nima Farshidfar +4 more
wiley +1 more source
Shrinkage properties of steel fiber reinforced concrete- A review
Applications in Engineering ScienceCracks induced by concrete shrinkage may allow corrosive agents to penetrate steel reinforced concrete and deteriorate the reinforcement. Adding randomly distributed steel fiber to concrete can reduce shrinkage and prevent the initiation of cracking ...
Mohammad Abedi +3 more
doaj +1 more source
Soft Tissue Substitutes: Current Biomaterials and Indications at Teeth and Implant Sites
Journal of Periodontal Research, EarlyView.This manuscript provides an updated overview of the current evidence on soft tissue graft substitutes for teeth and dental implants. When appropriately indicated, these biomaterials offer a reliable, less invasive alternative to autogenous grafts, effectively improving root coverage, keratinized mucosa width, and soft tissue thickness with reduced ...
Lorenzo Tavelli +4 more
wiley +1 more source
PREDICTION OF OCCURRENCE OF CRACKS DUE TO AUTOGENEOUS SHRINKAGE AND DRYING SHRINKAGE
Doboku Gakkai Ronbunshu, 2000 コンクリートのひび割れ発生時期を予測する研究の一環として, 一軸拘束試験体を用いてコンクリートの収縮によりひび割れを発生させ, 各種の要因がひび割れ発生時期に及ぼす影響, ひび割れ発生点近傍のひずみの挙動, 引張伸び能力や収縮応力強度比のひび割れ発生限界点としての適用性などについて検討し, さらに, 逐次解析を行い実験値と解析値の比較を行った. その結果, コンクリートの収縮ひずみが部材内で均一でないことがひび割れ発生時期をばらつかせる原因であること, ひび割れ発生に影響を与えている範囲から算定した引張伸び能力や, 強度発現条件を考慮した収縮応力強度比は, ひび割れ発生時期を予測する限界点として実用上適用できることなどを示した.
Toshio OHNO, Taketo UOMOTO
openaire +2 more sources