Compatibility of portland cement and polycarboxylate-based superplasticizers in high-strength concrete for precast constructions [PDF]
Application of polycarboxylate-based superplasticizers can contribute to the increase of concrete early strength. It makes possible to obtain the concrete of the required strength after heat-steaming treatment with decreasing the isothermal temperature ...
O.M. Smirnova
doaj +1 more source
Interlayer bonding investigation of 3D printing cementitious materials with fluidity retaining polycarboxylate superplasticizer and high dispersion polycarboxylate superplasticizer [PDF]
Proposed special requirements exist for the rheological properties and time varying characteristics of 3D printing cementitious materials (3DPC). In this study, high dispersion polycarboxylate superplasticizer (HD PC) and fluidity retaining polycarboxylate superplasticizer (FR PC) were used to control the rheological behaviors of 3DPC.
arxiv +1 more source
Dispersing Effect of Core Cross-linked Star Polycarboxylate Superplasticizers on the Cement Paste [PDF]
Researches on topological modification of polycarboxylate superplasticizers to improve the water-reducing or slump-retainning properties have been a hot topic in rencent years. Herein, a core crosslinked star polycarboxylate superplasticizers (SPCE) were
Zhang Jinlong+4 more
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The physics of cement cohesion [PDF]
Cement is one of the most produced materials in the world. A major player in greenhouse gas emissions, it is the main binding agent in concrete, to which it provides a cohesive strength that rapidly increases during setting. Understanding how such cohesion emerges has been a major obstacle to advances in cement science and technology.
arxiv +1 more source
Well Cement Degradation and Wellbore Integrity in Geological CO2 Storages: A Literature Review [PDF]
Carbon capture and storage (CCS) has emerged as the most effective method to curb the CO2 concentration in the atmosphere. It can store up to 5 billion tons of CO2 per year. To guarantee a safe and economical geological storage, the well cement degradation and wellbore integrity need to be studied thoroughly.
arxiv +1 more source
Microleakage at implant abutment and prosthesis interface in cemented implant-supported prosthesis
Background: Dental implants have an important role in mainstream dental practice today to restore esthetics. The present study was conducted to evaluate the microleakage at implant abutment and prosthesis interface in cemented implant-supported ...
Soni Kumari+5 more
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Experimental Study on the Effect of Polycarboxylate Superplasticizer on the Performance of Cement-Based Grouting Materials. [PDF]
Yu Z+6 more
europepmc +3 more sources
Research on the performance of recycled concrete powder self-leveling mortar based on orthogonal experiment [PDF]
Waste concrete in the construction waste is reprocessed into concrete sand and powder [1]. Recycled concrete sand with a particle size between 0.15 and 0.25mm partially replaces natural sand, and the recycled concrete powder with a particle size less ...
Lin Yuezhong+2 more
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Rheological Analysis and Evaluation of Measurement Techniques for the Curing Polymethylmethacrylate Bone Cement in Vertebroplasty [PDF]
Vertebroplasty is a minimally invasive surgical procedure used to treat vertebral fractures, which conventionally involves injecting polymethylmethacrylate (PMMA) bone cement into the fractured vertebra. A common risk associated with vertebroplasty is cement leaking out of the vertebra during the injection, which may occur due to a lack of ...
arxiv +1 more source
Structural Performance of Laterite soil Stabilised with Cement and Blue Gum (Eucalyptus Globulus) Wood Ash for Use as a Road base Material [PDF]
This study examines the effect of partially replacing cement with blue gumwood ash (BGWA) in stabilizing laterite soil to be used as a potential road base material. Initially, Ordinary Portland Cement was introduced to the soil at varying contents from 0 to 12% in steps of 3% by weight of the soil sample.
arxiv +1 more source