Results 21 to 30 of about 19,744 (308)

Carbon Resistances [PDF]

open access: yesPhysical Review (Series I), 1902
n ...
openaire   +1 more source

Effect of Superabsorbent Polymer (SAP) Internal Curing Agent on Carbonation Resistance and Hydration Performance of Cement Concrete

open access: yesAdvances in Materials Science and Engineering, 2022
To clarify the influencing mechanism of superabsorbent polymer (SAP) internal curing agent on the carbonation resistance of cement concrete, accelerated carbonation experiment was conducted to explore the effect of particle size and dosage of SAP on ...
Jieting Xu   +5 more
doaj   +1 more source

Managing the complexities of English Language teaching in engineering [PDF]

open access: yes, 2015
In this 21st century, engineering employers seek professional engineers who have excellent scientific knowledge and are able to demonstrate good communication and problem solving skills.
Mohamed, Mimi Nahariah Azwani
core   +1 more source

Effect of Freeze–Thaw Cycles on Carbonation Behavior of Three Generations of Repeatedly Recycled Aggregate Concrete

open access: yesApplied Sciences, 2021
Multiple recycling of waste concrete has attracted widespread attention. This study presented the carbonation behavior of repeatedly recycled aggregate concrete (RRAC) used in a micro-frozen region.
Hui Liu   +6 more
doaj   +1 more source

Ca-looping for postcombustion CO2 capture: A comparative analysis on the performances of dolomite and limestone [PDF]

open access: yes, 2015
The low cost and wide availability of natural limestone (CaCO3) is at the basis of the industrial competitiveness of the Ca-looping (CaL) technology for postcombustion CO2 capture as already demonstrated by ~1Mwt scale pilot projects.
Pérez Maqueda, Luis Allan   +2 more
core   +1 more source

An Efficient Synthesis and Photoelectric Properties of Green Carbon Quantum Dots with High Fluorescent Quantum Yield [PDF]

open access: yes, 2020
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/)To greatly ...
CHEN, Yong Kang   +6 more
core   +2 more sources

Electrical resistivity of carbon films [PDF]

open access: yesCarbon, 1973
The electrical resistivity along 500 A thick carbon films has been measured from 1.2 to 1100°K. The electrical resistivity measurements at high temperature indicate a change in the structure of the film beginning at about 670°K. In the theory of non-crystalline solids by Mott, the temperature dependence of the electrical conductivity σ, at low ...
D.S. Kupperman, C.K. Chau, H. Weinstock
openaire   +3 more sources

Research on Carbonation Characteristics and Frost Resistance of Iron Tailings Powder Concrete under Low-Cement Clinker System

open access: yesAdvances in Materials Science and Engineering, 2020
The accelerated carbonation, natural carbonation, fast freeze-thaw test, and pore structure analysis of C30 and C50 concrete with different proportions of iron tailings powder and slag powder were tested, respectively.
Ruidong Wu   +4 more
doaj   +1 more source

The Impact of Fractal Gradation of Aggregate on the Mechanical and Durable Characteristics of Recycled Concrete

open access: yesFractal and Fractional, 2023
Properties of recycled aggregate concrete (RAC) are influenced by the composition and particle size distribution of recycled coarse aggregate (RCA). The study herein designed seven distinct groups of RACs with varying aggregate fractal dimensions (D) and
Chang-Qing Quan   +5 more
doaj   +1 more source

Evaluation of Concrete Carbonation Based on a Fiber Bragg Grating Sensor

open access: yesMicromachines, 2023
The carbonation of concrete greatly affects its service life. In this paper, fiber Bragg grating (FBG) sensors were used to investigate the relationship between concrete carbonation and its mechanical properties.
Jianzhi Li, Haiqun Yang, Handong Wu
doaj   +1 more source

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