Concept

Psychrometrics

Related publications (184)

Chloride penetration model considering the microclimate

Eugen Brühwiler, Emmanuel Denarié, David Conciatori, Hamid Sadouki

Two main factors govern the ingress of chloride ions into concrete reinforced with ordinary steel reinforcement, from de-icing salts: (1) the cover concrete (permeability, thickness), and (2) the microclimatic conditions (humidity, temperature, concentrati ...

2003

Construction material monitoring with "optical hair" hygrometers

Pascal Kronenberg

Moisture is an essential parameter in the behaviour of capillary-porous construction materials such as timber and concrete. It affects liquid and gas transport phenomena, chemical and biological degradation processes, mechanical properties and, in the case ...

EPFL2003

Transient moisture effects on wood creep

John Christopher Plummer

To gain insight into the physical nature of the coupling between mechanical stress and humidity variations, the behaviour of thin wood strips was studied using specially developed apparatus for creep/recovery and relaxation/blotting-out tests in a controll ...

2002

Development of a multiwavelength aerosol and water-vapor lidar at the Jungfraujoch Alpine Station (3580 m above sea level) in Switzerland

Hubert van den Bergh, Bertrand Calpini, Valentin Simeonov, Ioan Balin, Gilles Larchevêque, Remo Nessler

The Jungfraujoch Research Station (46.55 degrees N, 7.98 degrees E, 3580 m above sea level) for decades has contributed in a significant manner to the systematic observation of the Earth's atmosphere both with in situ measurements and with trace gas column ...

2002

Effects of yttrium and sodium addition on preparation and humidity sensitivity of porous apatite ceramics

Nava Setter

Sodium yttrium calcium-oxyhydroxyapatites powders with compositions of {Ca9.98-0.9xY0.9Na0.02(6)[(OH)(1.98-0.9x)O(0.9)square(0.02)],x=0.1.0(here square denotes vacancies at OH lattice sites} were synthesized by the wet process. Porous (Ca, Y, Na)-Ap ...

1999

Marginal direct climate forcing by atmospheric aerosols

Athanasios Nenes, Spyros Pandis

Previous research on the direct effect of atmospheric aerosols on climate has estimated the average radiative forcing per unit sulfate mass, and has used this average to calculate the magnitude and spatial distribution of sulfate forcing. In this paper, we ...

Elsevier Sci Ltd1998

Numerical simulations and long-column tests of LNAPL displacement and trapping by a fluctuating water table

David Andrew Barry

Long-column laboratory tests were performed to validate improvements to the MOFAT program for simulating LNAPL displacement and entrapment in response to a fluctuating water table. The long-column tests consisted of a fluctuating water table and its subseq ...

1998

The heterogeneous formation of N2O over bulk condensed phases in the presence of SO2 at high humidities

Hubert van den Bergh, Michel Rossi

In view of the uncertainty of the origin of the secular increase of N2O, we studied heterogeneous processes that contribute to formation of N2O in an environment that comes as close as possible to exhaust conditions contg. NO and SO2, among other constitue ...

1996

Etude expérimentale des couplages mécanosorptifs dans le bois soumis à variations hygrométriques contrôlées sous chargements de longue durée

Subjected to moisture variations under a long-time mechanical loading, wood shows a delayed behaviour, where the total response is not the simple accumulation of those corresponding to the mechanical loading and the zero-load swelling-shrinkage deformation ...

EPFL1996

Moisture Diffusivity of Fiber Reinforced Silica Fume Mortars

Emmanuel Denarié, Yves Houst

The moisture diffusivity is of considerable importance for quantitative assessments of creep and shrinkage as well as durability of cementitious material. For this reason, the influence of the composition of repair mortars on their effective moisture diffu ...

1995

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