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Bibliographic Details
Main Author:	Serguei Solarte
Format:	Artículo científico
Language:	es
Published:	Universidad Tecnológica de Pereira 2007
Subjects:	Ingeniería puzolana durabilidad en concretos Ceniza de cascarilla de arroz espectroscopía de Impedancia electroquímica
Online Access:	https://www.redalyc.org/articulo.oa?id=84903679
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Efecto del modo de obtención de la sílice amorfa a partir de la cascarilla de arroz en las propiedades de durabilidad del concreto armado. Serguei Solarte Michel Ospina William Aperador Ruby Mejía de Gutierrez Ingeniería puzolana durabilidad en concretos Ceniza de cascarilla de arroz espectroscopía de Impedancia electroquímica En este artículo se investigó el efecto que la ceniza de cascarilla de arroz tienesobre las propiedades mecánicas y de durabilidad en el concretos adicionado.Para esto, se hicieron a 28 días de curado ensayos de resistencia mecánica,densidad y porosidad, penetración rápida del ión cloruro, espectroscopía deimpedancia electroquímica y resistencia a la polarización. Los resultadosdemuestran que la ceniza disponible localmente aumenta la resistencia acompresión y reduce la permeabilidad ante agentes agresivos como el ión clorosólo si se adiciona al concreto en partículas finamente molidas. 2007 artículo científico 0122-1701 https://www.redalyc.org/articulo.oa?id=84903679 es http://www.redalyc.org/revista.oa?id=849 Scientia Et Technica application/pdf Universidad Tecnológica de Pereira Scientia Et Technica (Colombia) Num.36 Vol.XIII

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// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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