4.7 Article

Modified random hierarchical bundle model for predicting gas permeability of cement-based materials

Related references

Note: Only part of the references are listed.
Article Construction & Building Technology

Experimental study on gas permeability of cement-based materials

Jiashun Shi et al.

Summary: Gas permeability is an important property associated with the durability of cement-based materials. This study evaluates the gas permeability of cement-based materials using a quasi-stationary flow experimental method. The results show that the intrinsic permeability of dried cement-based materials is affected by the addition of limestone powder, fly ash, and aggregate. The study also proposes a prediction model for the gas permeability of cement-based materials under arbitrary water saturation and pressure gradient.

CEMENT & CONCRETE COMPOSITES (2022)

Article Construction & Building Technology

Effects of various inlet-gas mediums on apparent permeability of concrete under steady-state flow: Comparison between carbon-dioxide and oxygen

Rusheng Qian et al.

Summary: The apparent gas permeability of concrete is highly dependent on pore structure and gas medium. The effects of gas absorption from CO2 and O-2 on permeability are minimal, with O-2 having higher permeability than CO2. Significant differences in Knudson diffusion near the outlet-gas side of concrete contribute to deviations in permeability.

CEMENT & CONCRETE COMPOSITES (2021)

Article Chemistry, Applied

Evaluating the chloride diffusion coefficient of cement mortars based on the tortuosity of pore structurally-designed cement pastes

Yiqun Guo et al.

Summary: The study examined the relationship between chloride diffusion coefficient and pore tortuosity in cement pastes, finding that small capillary pores with radius of 5-20 nm have the highest contribution to pore tortuosity and chloride resistance. The results suggest that optimizing the pore structure of cement-based materials can effectively improve chloride resistance.

MICROPOROUS AND MESOPOROUS MATERIALS (2021)

Article Construction & Building Technology

A time-dependent chloride diffusion model for predicting initial corrosion time of reinforced concrete with slag addition

Chen-zhi Li et al.

Summary: The research indicates that adding granulated blast furnace slag can lower the threshold chloride concentration for concrete corrosion and delay the initiation of corrosion. Additionally, the addition of slag can refine the pore structure of concrete.

CEMENT AND CONCRETE RESEARCH (2021)

Article Geosciences, Multidisciplinary

An Anisotropic Permeability Model for Shale Gas Recovery Considering Slippage Effect and Embedded Proppants

Jianhua Li et al.

NATURAL RESOURCES RESEARCH (2020)

Article Construction & Building Technology

Investigation on parameters optimization for gas permeability testing of concrete: Inlet-gas pressure and confining pressure

Rusheng Qian et al.

CONSTRUCTION AND BUILDING MATERIALS (2020)

Article Energy & Fuels

Modeling gas relative permeability in shales and tight porous rocks

Behzad Ghanbarian et al.

Article Construction & Building Technology

On the prediction of permeability and relative permeability from pore size distributions

Lionel Ecay et al.

CEMENT AND CONCRETE RESEARCH (2020)

Article Construction & Building Technology

Gas permeability and electrical conductivity of structural concretes: Impact of pore structure and pore saturation

Qiang Gui et al.

CEMENT AND CONCRETE RESEARCH (2016)

Article Construction & Building Technology

Effect of self-desiccation on the pore structure of paste and mortar incorporating 70% GGBS

Kefei Li et al.

CONSTRUCTION AND BUILDING MATERIALS (2014)

Review Soil Science

Tortuosity in Porous Media: A Critical Review

Behzad Ghanbarian et al.

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL (2013)

Article Construction & Building Technology

Analysis of pore structure, contact angle and pore entrapment of blended cement pastes from mercury porosimetry data

Qiang Zeng et al.

CEMENT & CONCRETE COMPOSITES (2012)

Article Construction & Building Technology

Water retention and gas relative permeability of two industrial concretes

Wei Chen et al.

CEMENT AND CONCRETE RESEARCH (2012)

Article Engineering, Chemical

Effective Correlation of Apparent Gas Permeability in Tight Porous Media

Faruk Civan

TRANSPORT IN POROUS MEDIA (2010)

Article Engineering, Geological

Comparison of Klinkenberg-corrected gas permeability and water permeability in sedimentary rocks

Wataru Tanikawa et al.

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES (2009)

Article Energy & Fuels

Nanopores and Apparent Permeability of Gas Flow in Mudrocks (Shales and Siltstone)

F. Javadpour

JOURNAL OF CANADIAN PETROLEUM TECHNOLOGY (2009)

Article Energy & Fuels

Nanoscale gas flow in shale gas Sediments

F. Javadpour et al.

JOURNAL OF CANADIAN PETROLEUM TECHNOLOGY (2007)

Article Physics, Applied

Modeling gas flow through microchannels and nanopores

S Roy et al.

JOURNAL OF APPLIED PHYSICS (2003)

Article Construction & Building Technology

Experimental study of gas and liquid permeability of a mortar

H Loosveldt et al.

CEMENT AND CONCRETE RESEARCH (2002)

Article Engineering, Chemical

A novel pore structure tortuosity concept based on nitrogen sorption hysteresis data

CE Salmas et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2001)