Results 91 to 100 of about 18,482 (315)
Effect of admixtures on the yield stresses of cement pastes under high hydrostatic pressures [PDF]
, 2016 When cement-based materials are transported at a construction site, they undergo high pressures during the pumping process. The rheological properties of the materials under such high pressures are unknown, and estimating the workability of the materials
Kim, Jae Hong +2 more
core +2 more sources
Structural Concrete, EarlyView.Abstract Many infrastructure buildings show deficits in their load‐bearing capacity and need to be strengthened in the short or medium term. However, the available methods are usually not effective for the self‐weight without temporary raising or prestressing the structure.
Yannik Schwarz +4 more
wiley +1 more source
Influence of superplasticizer on the rheology of fresh cement asphalt paste [PDF]
, 2015 Cement asphalt (CA) paste is an organic–inorganic composite material of cement and asphalt emulsion. Its complicated rheological behavior affects its site application in high speed railway.
Deng, Dehua +4 more
core +2 more sources
The influence of casting position and depth of concrete pour on bond strength
Structural Concrete, EarlyView.Abstract Bond strength of steel bars cast near the top of a concrete pour may be lower than that of bars cast close to the bottom due to an increase in water content, to consolidation of fluid concrete below the bar, or to both. Current design codes typically require increases of 20%–40% in anchorage and lap lengths in “poor” bond conditions to allow ...
Benny Suryanto +3 more
wiley +1 more source
The complex binder based on Portland cement andash-and-slag wastes from thermal power stations [PDF]
, 2019 Increase in the balance of boiler and furnace fuel of the energy sector of the Republic of Belarus the proportion of own energy resources (milling peat and wood chips) places priority on resolving the issues of utilization of ash-and-slag wastes and ...
Vysotskaya, Maryia
core
Structural Concrete, EarlyView.Abstract This study investigates the impact of magnetic alignment of micro steel fibers (0.35%, 0.70%, and 1.05% contents) on the mechanical and electrical properties of fiber‐reinforced self‐compacting concrete. A simplified magnetic circuit was designed and built to align the fibers within the concrete matrix.
Mohamed M. Al Rifai +2 more
wiley +1 more source
40 years of PCE superplasticizers - History, current state-of-the-art and an outlook
Cement and Concrete Research, 2022 L. Lei, T. Hirata, J. Plank
semanticscholar +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
Special self-compacting concretes [PDF]
, 2013 The paper presents experimental investigations on the special self-compacting concretes, in different compositions. Also, in this paper highlights the influence of super plasticizers additives use upon the mechanical, structural and chemical properties
Abdelgader, Hakim S. +3 more
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Effect of Linkage Bond between Backbone and Side Chain in Comb-Like Copolymer Dispersants on Early Properties of Concentrated Cement Suspensions [PDF]
, 2012 Comb-like copolymer, consists of backbone with ionizable group and charge neutral poly(ethylene oxide)-based “teeth” side chain grafted onto the backbone at frequent intervals, has been widely used as superplasticizer in concrete industry due to its ...
Liu, Jiaping +3 more
core +1 more source