Results 191 to 200 of about 2,466,880 (247)

Effects of wild-type and standard-strain bacteria immobilized in expanded perlite on the properties of self-healing concrete

Magazine of Concrete Research
The effects of two different bacteria species on the strength, durability, and microstructure of self-healing concrete were compared. A new wild-type calcifying strain, extracted from agricultural soil of Gilan province, Iran, was used to prepare ...
Mehdi Esfandi Sarafraz, Motahareh Nezafat Tabalvandani   +1 more
semanticscholar   +1 more source

Preparation and characterization of expanded perlite and industrial waste salt composite thermochemical heat storage material.

Waste Management
The reuse of industrial waste salts offers significant potential for environmental protection and resource conservation. This study investigates the application of industrial waste salt, primarily composed of magnesium chloride hexahydrate, as a ...
Hao Ye, Wenjie Yan, X. Xin, K. Dang, Yubing Tao   +4 more
semanticscholar   +1 more source

Research on Homogeneity of Expanded Perlite Lightweight Concrete

Key Engineering Materials, 2014
This paper discusses the reason of segregation of expanded perlite lightweight aggregate concrete. By adding fly ash, high effective admixture, the expanded perlite pre-wetting and so on,the expanded perlite lightweight concrete,CL5-CL10,was confect with good workability, homogeneity, no bleeding and segregation, easy casting and excavation.
Ping Yang, Wei Xia Zhao, Jin Chao Yang, Li Liu, Mian Li Cao   +4 more
openaire   +1 more source

Study of oil sorption by expanded perlite at 298.15K

Separation and Purification Technology, 2006
Sorption capacity as well as sorption kinetics of oil onto four different expanded perlites with different physical and surface properties were studied. In order to meticulously measure the amount of oil to be sorbed onto the adsorbents used in this study both static and dynamic methods were employed.
D. Bastani, A.A. Safekordi, A. Alihosseini, V. Taghikhani   +3 more
openaire   +1 more source

Numerical simulation of bubble growth in expanding perlite

Journal of Materials Science, 2001
Aiming to improve the comprehension of the expansion process of perlite, a numerical study has been carried out, concerning the water vapour bubble growth in softened perlite melt. The physical properties of the melt and temperature history during the expansion process are varied, in order to determine the most influencing parameters. Calculated bubble
K. Zähringer, J.-P. Martin, J.-P. Petit
openaire   +1 more source

Thermal stability of expanded perlite modified by mullite

Ceramics International, 2009
Abstract Results of the thermal stability of expanded perlite modified by mullite are presented. Mullite was formed from alumino-silicate gel by sol–gel method. This method allowed us to obtain very homogenous and reactive gel and phase formation of mullite took place at relatively low temperatures. Expanded perlite modified with alumino-silicate gel
Waldemar Pichór, Agnieszka Janiec
openaire   +1 more source

Microwave Drying of Expanded Perlite Insulation Board

Industrial & Engineering Chemistry Research, 2012
The microwave drying process intensification of new inorganic thermal insulation board, containing expanded perlite and inorganic binder, was investigated in a multimode microwave applicator, with a 1.8 kW, 2.45 GHz microwave source. Ability to generate heat inside moistened material and to avoid the problem of heat conduction to the core of the ...
Blaz Skubic, Mitja Lakner, Igor Plazl
openaire   +1 more source

Use of expanded perlite as green filler for the preparation of EPDM‐perlite rubber composites with improved thermal stability and insulation properties

Polymer Composites
The present study investigated the use of expanded perlite (e‐perlite) as a sustainable and cost‐effective filler for EPDM (ethylene propylene diene monomer) rubber composites. Various amounts of e‐perlite were incorporated into EPDM to assess its impact
C. Çavdaroğlu, U. Olgun, Ekrem Altuncu
semanticscholar   +1 more source

Interface Structure Strengthening of a Mesoporous Silicon/Expanded Perlite Microevaporator for Efficient Solar-Driven Interfacial Evaporation.

Journal of Physical Chemistry Letters
Solar-driven interfacial evaporation is one of the cutting-edge technologies for seawater desalination and wastewater purification. Herein, a floating carbon-coated silica microsphere/expanded perlite integrated interfacial microevaporator (HEPCL) is ...
Xiaoguang Zhao, Xiaozheng Liang, Quan Li, Weimin Xie, Qianqian Liu, Yili Tang, Yihang Li, Xiaochao Zuo, Huaming Yang   +8 more
semanticscholar   +1 more source

Thermal Degradation Kinetic Study of Expanded Perlite‐Modified Butadiene Rubber Composites

Macromolecular Reaction Engineering
Mineral‐rubber composites based on phosphorylated butadiene rubber (PhBR), including pure expanded perlite (EP) and modified phosphorylated expanded perlite (PhEP) as fillers, have been developed. The process involved forming PhBR and its composites – EP/
Nada Edres, I. Buniyatzadeh, Solmaz Aliyeva, S. Turp, Rasim Alosmanov   +4 more
semanticscholar   +1 more source