Results 31 to 40 of about 4,819 (215)
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
Interaction between cements with different composition and superplasticizers
Materiales de Construccion, 2012 The slump behavior of ordinary Portland-, pozzolanic (red brick powder)-, sulfate resistant-, and limestone cement pastes caused by ≤ 1% additions of polycondensates and polycarboxylates superplasticizers are monitored for up to 90 minutes.
H. Y. Ghorab +2 more
doaj +1 more source
Basic Research of Improving the Mortar Flow by Thermal Stimulation to Superplasticizer [PDF]
MATEC Web of Conferences, 2019 Polycarboxylic acid-based superplasticizers are being used for various fields of concrete work, however little has reported on changing basic performance by thermal fluctuation.
Takigawa Mizuki +3 more
doaj +1 more source
Heliyon, 2023 As governments around the world take on ambitious construction projects, from housing to infrastructure to transportation, the demand for cement is set to rise.
Ishan Bhandari +3 more
doaj +1 more source
Structural Concrete, EarlyView.Abstract Cellulose nanocrystals (CNCs), increasingly utilized in cement‐bound materials, offer improved material properties and enhanced sustainability due to their bio‐based origin. Nanosilica (NS), known for its high reactivity and refinement of cement microstructure, also significantly impacts cement performance.
Ali Satar Jaber Al‐Askary +2 more
wiley +1 more source
Structural Concrete, EarlyView.Abstract A total of four reinforced concrete (RC) columns were tested to compare the structural capacities of RC columns produced by natural perlite aggregates and conventional concrete. The structural performance of the RC columns made from natural perlite aggregates was compared to conventional RC columns regarding the same concrete strength levels ...
Sefa Atlı +6 more
wiley +1 more source
Influence of superplasticizers on the concrete mix properties
Инженерно-строительный журнал, 2017 The most important technological properties of concrete mix are its workability, waterproof capacity, immutability of the properties and air-entrainment.
Maria Antonova +5 more
doaj +1 more source
The influence of superplasticizer and shrinkage reducing admixture type on air-content and related properties of HPSCC [PDF]
MATEC Web of Conferences, 2020 Theoretically, high-performance concrete with w/c ratio about 0.30 and w/b about 0.28 should have low porosity, low water permeability and high strength.
Łaźniewska-Piekarczyk Beata
doaj +1 more source
Structural Concrete, EarlyView.Abstract Fiber addition is a common strategy to enhance concrete's durability, avoiding cracks and reducing penetration of harmful agents. In this research, a sustainable fiber‐like material obtained from mechanical recycling of dismantled wind‐turbine blades and made up of glass fiber‐reinforced polymer (GFRP) fibers and microfibers, balsa wood, and ...
Javier Manso‐Morato +4 more
wiley +1 more source
Structural Concrete, EarlyView.Abstract Fly ash foam composite concrete (FFC) is a sustainable, lightweight alternative to traditional concrete. However, accurately predicting its compressive strength (CS) through conventional laboratory methods is challenging due to its non‐linear behavior induced by the addition of foam content and fly ash. Also, the laboratory determination of CS
Atta Ullah +5 more
wiley +1 more source