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	<id>https://iskomunidad.upd.edu.ph/index.php?action=history&amp;feed=atom&amp;title=Low_Cost_Water_Permeability_Apparatus_for_Concrete</id>
	<title>Low Cost Water Permeability Apparatus for Concrete - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://iskomunidad.upd.edu.ph/index.php?action=history&amp;feed=atom&amp;title=Low_Cost_Water_Permeability_Apparatus_for_Concrete"/>
	<link rel="alternate" type="text/html" href="https://iskomunidad.upd.edu.ph/index.php?title=Low_Cost_Water_Permeability_Apparatus_for_Concrete&amp;action=history"/>
	<updated>2026-07-06T06:16:22Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.45.1</generator>
	<entry>
		<id>https://iskomunidad.upd.edu.ph/index.php?title=Low_Cost_Water_Permeability_Apparatus_for_Concrete&amp;diff=21584&amp;oldid=prev</id>
		<title>Mqmallonga at 10:46, 8 February 2012</title>
		<link rel="alternate" type="text/html" href="https://iskomunidad.upd.edu.ph/index.php?title=Low_Cost_Water_Permeability_Apparatus_for_Concrete&amp;diff=21584&amp;oldid=prev"/>
		<updated>2012-02-08T10:46:57Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 10:46, 8 February 2012&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l6&quot;&gt;Line 6:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 6:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Data on long-term behavior of concrete exposed to local environment is an important pre-requisite for performance-based of concrete structures. However, the locus of past studies is on concrete strength. Durability-related studies considering local environment in the Philippines is scarce. Since water permeability may be taken as an indicator of concrete durability, this study attempted to develop a simple and low cost water permeability apparatus based on Darcy&amp;#039;s equation with only gravity as the driving force. The apparatus was tested for repeatability of results both for single and multi-operator cases. Usage was then demonstrated to determine the permeability of ordinary concrete, concrete with fly ash, and concrete subjected to various levels of chemical degradation. Results obtained are of the same magnitude as published data and these can be used as baseline data for future durability-related studies in the local scene.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Data on long-term behavior of concrete exposed to local environment is an important pre-requisite for performance-based of concrete structures. However, the locus of past studies is on concrete strength. Durability-related studies considering local environment in the Philippines is scarce. Since water permeability may be taken as an indicator of concrete durability, this study attempted to develop a simple and low cost water permeability apparatus based on Darcy&amp;#039;s equation with only gravity as the driving force. The apparatus was tested for repeatability of results both for single and multi-operator cases. Usage was then demonstrated to determine the permeability of ordinary concrete, concrete with fly ash, and concrete subjected to various levels of chemical degradation. Results obtained are of the same magnitude as published data and these can be used as baseline data for future durability-related studies in the local scene.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Subject Index : Concrete—Permeability&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category: Theses]][[Category:College of Engineering Thesis]][[Category: Civil Engineering Thesis]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category: Theses]][[Category:College of Engineering Thesis]][[Category: Civil Engineering Thesis]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Mqmallonga</name></author>
	</entry>
	<entry>
		<id>https://iskomunidad.upd.edu.ph/index.php?title=Low_Cost_Water_Permeability_Apparatus_for_Concrete&amp;diff=18131&amp;oldid=prev</id>
		<title>Iskwiki.admin at 04:33, 7 September 2011</title>
		<link rel="alternate" type="text/html" href="https://iskomunidad.upd.edu.ph/index.php?title=Low_Cost_Water_Permeability_Apparatus_for_Concrete&amp;diff=18131&amp;oldid=prev"/>
		<updated>2011-09-07T04:33:08Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 04:33, 7 September 2011&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l7&quot;&gt;Line 7:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 7:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Data on long-term behavior of concrete exposed to local environment is an important pre-requisite for performance-based of concrete structures. However, the locus of past studies is on concrete strength. Durability-related studies considering local environment in the Philippines is scarce. Since water permeability may be taken as an indicator of concrete durability, this study attempted to develop a simple and low cost water permeability apparatus based on Darcy&amp;#039;s equation with only gravity as the driving force. The apparatus was tested for repeatability of results both for single and multi-operator cases. Usage was then demonstrated to determine the permeability of ordinary concrete, concrete with fly ash, and concrete subjected to various levels of chemical degradation. Results obtained are of the same magnitude as published data and these can be used as baseline data for future durability-related studies in the local scene.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Data on long-term behavior of concrete exposed to local environment is an important pre-requisite for performance-based of concrete structures. However, the locus of past studies is on concrete strength. Durability-related studies considering local environment in the Philippines is scarce. Since water permeability may be taken as an indicator of concrete durability, this study attempted to develop a simple and low cost water permeability apparatus based on Darcy&amp;#039;s equation with only gravity as the driving force. The apparatus was tested for repeatability of results both for single and multi-operator cases. Usage was then demonstrated to determine the permeability of ordinary concrete, concrete with fly ash, and concrete subjected to various levels of chemical degradation. Results obtained are of the same magnitude as published data and these can be used as baseline data for future durability-related studies in the local scene.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category: Theses]][[Category: Civil Engineering Thesis]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category: Theses&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]][[Category:College of Engineering Thesis&lt;/ins&gt;]][[Category: Civil Engineering Thesis]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Iskwiki.admin</name></author>
	</entry>
	<entry>
		<id>https://iskomunidad.upd.edu.ph/index.php?title=Low_Cost_Water_Permeability_Apparatus_for_Concrete&amp;diff=18075&amp;oldid=prev</id>
		<title>Iskwiki.admin at 03:34, 7 September 2011</title>
		<link rel="alternate" type="text/html" href="https://iskomunidad.upd.edu.ph/index.php?title=Low_Cost_Water_Permeability_Apparatus_for_Concrete&amp;diff=18075&amp;oldid=prev"/>
		<updated>2011-09-07T03:34:20Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 03:34, 7 September 2011&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l7&quot;&gt;Line 7:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 7:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Data on long-term behavior of concrete exposed to local environment is an important pre-requisite for performance-based of concrete structures. However, the locus of past studies is on concrete strength. Durability-related studies considering local environment in the Philippines is scarce. Since water permeability may be taken as an indicator of concrete durability, this study attempted to develop a simple and low cost water permeability apparatus based on Darcy&amp;#039;s equation with only gravity as the driving force. The apparatus was tested for repeatability of results both for single and multi-operator cases. Usage was then demonstrated to determine the permeability of ordinary concrete, concrete with fly ash, and concrete subjected to various levels of chemical degradation. Results obtained are of the same magnitude as published data and these can be used as baseline data for future durability-related studies in the local scene.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Data on long-term behavior of concrete exposed to local environment is an important pre-requisite for performance-based of concrete structures. However, the locus of past studies is on concrete strength. Durability-related studies considering local environment in the Philippines is scarce. Since water permeability may be taken as an indicator of concrete durability, this study attempted to develop a simple and low cost water permeability apparatus based on Darcy&amp;#039;s equation with only gravity as the driving force. The apparatus was tested for repeatability of results both for single and multi-operator cases. Usage was then demonstrated to determine the permeability of ordinary concrete, concrete with fly ash, and concrete subjected to various levels of chemical degradation. Results obtained are of the same magnitude as published data and these can be used as baseline data for future durability-related studies in the local scene.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Thesis&lt;/del&gt;]][[Category: Civil Engineering Thesis]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category: &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Theses&lt;/ins&gt;]][[Category: Civil Engineering Thesis]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Iskwiki.admin</name></author>
	</entry>
	<entry>
		<id>https://iskomunidad.upd.edu.ph/index.php?title=Low_Cost_Water_Permeability_Apparatus_for_Concrete&amp;diff=18063&amp;oldid=prev</id>
		<title>Mhmisolas: LOW COST WATER PERMEABILITY APPARATUS FOR CONCRETE moved to Low Cost Water Permeability Apparatus for Concrete</title>
		<link rel="alternate" type="text/html" href="https://iskomunidad.upd.edu.ph/index.php?title=Low_Cost_Water_Permeability_Apparatus_for_Concrete&amp;diff=18063&amp;oldid=prev"/>
		<updated>2011-09-07T03:30:56Z</updated>

		<summary type="html">&lt;p&gt;&lt;a href=&quot;/index.php/LOW_COST_WATER_PERMEABILITY_APPARATUS_FOR_CONCRETE&quot; class=&quot;mw-redirect&quot; title=&quot;LOW COST WATER PERMEABILITY APPARATUS FOR CONCRETE&quot;&gt;Low Cost Water Permeability Apparatus for Concrete&lt;/a&gt; moved to &lt;a href=&quot;/index.php/Low_Cost_Water_Permeability_Apparatus_for_Concrete&quot; title=&quot;Low Cost Water Permeability Apparatus for Concrete&quot;&gt;Low Cost Water Permeability Apparatus for Concrete&lt;/a&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 03:30, 7 September 2011&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Mhmisolas</name></author>
	</entry>
	<entry>
		<id>https://iskomunidad.upd.edu.ph/index.php?title=Low_Cost_Water_Permeability_Apparatus_for_Concrete&amp;diff=18062&amp;oldid=prev</id>
		<title>Mhmisolas: New page: &#039;&#039;&#039;Marish S. Madlangbayan&#039;&#039;&#039;  Thesis (M.S. Civil Engineering), University of the Philippines Diliman-2004  &#039;&#039;&#039;Abstract&#039;&#039;&#039;  Data on long-term behavior of concrete exposed to local environme...</title>
		<link rel="alternate" type="text/html" href="https://iskomunidad.upd.edu.ph/index.php?title=Low_Cost_Water_Permeability_Apparatus_for_Concrete&amp;diff=18062&amp;oldid=prev"/>
		<updated>2011-09-07T03:30:11Z</updated>

		<summary type="html">&lt;p&gt;New page: &amp;#039;&amp;#039;&amp;#039;Marish S. Madlangbayan&amp;#039;&amp;#039;&amp;#039;  Thesis (M.S. Civil Engineering), University of the Philippines Diliman-2004  &amp;#039;&amp;#039;&amp;#039;Abstract&amp;#039;&amp;#039;&amp;#039;  Data on long-term behavior of concrete exposed to local environme...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Marish S. Madlangbayan&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
&lt;br /&gt;
Thesis (M.S. Civil Engineering), University of the Philippines Diliman-2004&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Abstract&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
&lt;br /&gt;
Data on long-term behavior of concrete exposed to local environment is an important pre-requisite for performance-based of concrete structures. However, the locus of past studies is on concrete strength. Durability-related studies considering local environment in the Philippines is scarce. Since water permeability may be taken as an indicator of concrete durability, this study attempted to develop a simple and low cost water permeability apparatus based on Darcy&amp;#039;s equation with only gravity as the driving force. The apparatus was tested for repeatability of results both for single and multi-operator cases. Usage was then demonstrated to determine the permeability of ordinary concrete, concrete with fly ash, and concrete subjected to various levels of chemical degradation. Results obtained are of the same magnitude as published data and these can be used as baseline data for future durability-related studies in the local scene.&lt;br /&gt;
&lt;br /&gt;
[[Category: Thesis]][[Category: Civil Engineering Thesis]]&lt;/div&gt;</summary>
		<author><name>Mhmisolas</name></author>
	</entry>
</feed>