Results 91 to 100 of about 174,423 (311)

Optimization of UHPC Mix Design Using Polyacrylonitrile Fibers and Coarse Aggregates for Cost Reduction

open access: yesBuildings
To reduce the production cost of ultra-high performance concrete (UHPC), this study incorporated polyacrylonitrile (PAN) fibers and coarse aggregates (CA) to develop a novel UHPC with both excellent performance and reduced cost.
Qinshi Hu   +3 more
doaj   +1 more source

Materials used to build the wooden vault over the Plenary Hall in the Spanish Senate Buiding

open access: yesMateriales de Construccion, 2012
The constituent materials used to build the wooden vault over the Plenary Hall in the Spain’s Senate Building (ca 1814-1820) are analyzed in this paper.
R. Bustamante   +2 more
doaj   +1 more source

Enhanced self-healing capacity in cementitious materials by use of encapsulated carbonate precipitating bacteria : from proof-of-concept to reality [PDF]

open access: yes, 2013
In this study, two bacteria-based self-healing systems were developed for the proof-of-concept and approach to a realistic self-healing. A self-healing system with glass capillaries and silica sol gel carried bacterial cells was first built.
De Belie, Nele   +2 more
core  

Permeability of Concrete with Recycled Concrete Aggregate and Pozzolanic Materials under Stress. [PDF]

open access: yes, 2016
The research reported herein studied the permeability of concrete containing recycled-concrete aggregate (RA), superfine phosphorous slag (PHS), and ground granulated blast-furnace slag (GGBS) with and without stress.
MONTEIRO, Paulo J.m.   +3 more
core   +2 more sources

The Layout and Size of an Early Pre‐Pottery Neolithic B Small Settlement Revealed by Geophysical Prospection at Harbetsuvan Tepesi in Southeastern Anatolia

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT In Upper Mesopotamia, the transition from the Pre‐Pottery Neolithic A (PPNA) to Pre‐Pottery Neolithic B (PPNB) period, ca. 10 800–10 600 cal. BP, is marked by a series of changes in chipped stone industries, architectural forms, symbolic objects, regional distribution of settlements and long‐distance exchange networks among others.
Toshihiro Tada   +7 more
wiley   +1 more source

Resistencia química del hormigón XXVI. Influencia de la adición de escoria a un cemento Portland. Estudio de la concentración iónica (del sistema cemento 3/escoria-agua) de mar artificial

open access: yesMateriales de Construccion, 1986
This work, which is a follow-up of others, studies the development of the solid-stage quantity formed in ASTM D 1141-75 artificial seawater, in which the series of samples of mortar (1:3), made up of a portland cement (cement 3 < > P-450) and the ...
Demetrio Gaspar-Tebar   +1 more
doaj   +1 more source

NiFe‐NO3 Layered Double Hydroxide as a Novel Anode for Sodium Ion Batteries

open access: yesBatteries &Supercaps, Volume 8, Issue 3, March 2025.
This study demonstrates, for the first time, the effectiveness of using LDH as an anodic material in SIB. The material is stable and show high specific capacity, the reaction mechanism has been thoroughly investigated and comprehensively described and involves a phase change reaction followed by sodium intercalation.
Marco Fortunato   +4 more
wiley   +1 more source

Resistencia química del hormigón. XXIV. Influencia de la adición de escoria a un cemento portland resistente al yeso. Estudio de la concentración iónica del sistema cemento 2/escoria-agua de mar artificial

open access: yesMateriales de Construccion, 1984
This work, which follows on from previous ones, studies the development of the solid-stage quantity formed in ASTM D 1141-75 artificial sea-water, in which the series of samples of mortar (1:3), made up of a portland cement resistant to sulfate (cement 2
Demetrio Gaspar-Tébar   +1 more
doaj   +1 more source

Counter-Mortar Operational Research in the 21 Army Group [PDF]

open access: yes, 2012
The campaign in Northwest Europe has been the subject of thousands of books and articles, including a number based on careful documentary research. But even the best accounts pay insufficient attention to the German weapons systems that inflicted the ...
Copp, Terry
core   +1 more source

Non-destructive evaluation of cement-based materials from pressure-stimulated electrical emission - Preliminary results [PDF]

open access: yes, 2011
This is the post-print version of the final paper published in Construction and Building Materials. The published article is available from the link below.
A. Kyriazopoulos   +35 more
core   +1 more source

Home - About - Disclaimer - Privacy