Results 81 to 90 of about 18,482 (315)
Investigating the Rheological Properties of Ultra High Strength Concrete Made with Various Superplasticizers [PDF]
, 2019 Ultra-High Strength Concrete (UHSC) is a high-strength and highly ductile material formulated to provide compressive strengths exceeding 130MPa. UHSC materials typically have a very low water-to-cementitious ratio (w/cm), which requires the use of ...
Aguayo, Federico +3 more
core +2 more sources
Development of EPS light‐weight concrete for 3D printing
Structural Concrete, EarlyView.Abstract This study investigates the feasibility of 3D printing lightweight concrete (LWC) incorporating expanded polystyrene (EPS) beads, with a focus on optimizing mechanical properties and flowability for 3D concrete printing (3DCP). The research addresses the need for printable, structurally viable lightweight materials by developing and testing ...
Nima Aminpour, Ali Memari
wiley +1 more source
Applied SciencesUltra-high-performance concrete (UHPC) has been following economic and environmental trends for the past two decades. Limited research has been conducted on the significance of superplasticizers in UHPC products, despite the high costs they entail for ...
Sama Tajasosi +5 more
doaj +1 more source
The Greenhouse Gas Emission from Portland Cement Concrete Pavement Construction in China. [PDF]
, 2016 This study proposes an inventory analysis method to evaluate the greenhouse gas (GHG) emissions from Portland cement concrete pavement construction, based on a case project in the west of China. The concrete pavement construction process was divided into
Aimin Sha +9 more
core +1 more source
Structural Concrete, EarlyView.Abstract Ultra‐fine copper slag (CS), a byproduct of the copper industry, is al waste material that is produced in large volumes annually, and its disposal and management are a major environmental concern. Therefore, the utilization of CS in various sectors, especially in the production of construction and building materials, offers enormous potential ...
Metin Katlav +4 more
wiley +1 more source
Particularities of chemical modifiers selection for fabricating concrete articles by extrusion technology (rus) [PDF]
Инженерно-строительный журнал, 2012 The purpose of the present work is developing the requirements for the chemical modifiers defining their suitability in extrusion technology for formation of articles from concrete and reinforced concrete.
Baydzhanov D.O. +2 more
doaj
Towards tailored superplasticizers [PDF]
, 2005 Superplasticizers (SP) of the “new generation” are essentially polycarboxylate polymers. Polymers of this family can be produced with almost infinite variations in their chemical structure, which allow the fulfilment of specific (tailored) properties ...
Bowen, P., Houst, Y.F., Perche, F.
core
Effect of Various Superplasticizers on the Textural Properties of Silica Fume Pozzolanic Cements
Adsorption Science & Technology, 2002 The influence of different superplasticizers on the hydration and textural characteristics of hardened pozzolanic cement pastes was evaluated. Thus, the BET surface areas and pore structures of hardened cement pastes containing different amounts of ...
Nasr-Allah M. Deraz +2 more
doaj +1 more source
Wider Perspective of Testing Early Shrinkage of Concrete Modified with Admixtures in Changeable W/C Ratio as Innovative Solution in Civil Engineering [PDF]
, 2015 The problems of concrete shrinkage have been debated by a number of authors, including those specializing in concrete chemistry. The development of concrete technologies, introducing chemical admixtures and mineral additives and high resistance concretes
Jasiczak, Józef +2 more
core +1 more source
Enhancing printability of 3D printed concrete by using metakaolin and silica fume
Structural Concrete, EarlyView.Abstract This study investigates the effects of incorporating metakaolin (MK) and silica fume (SF) on the fresh and hardened properties of 3D printed concrete (3DPC). Five mix designs were prepared with MK replacement levels of 0%, 10%, 12.5%, and 15%, along with one mix containing 10% MK and 5% SF.
Marwah M. Thajeel +2 more
wiley +1 more source