https://www.scipedia.com/wd/index.php?action=history&feed=atom&title=Sato_et_al_2020cSato et al 2020c - Revision history2026-04-27T14:40:05ZRevision history for this page on the wikiMediaWiki 1.27.0-wmf.10https://www.scipedia.com/wd/index.php?title=Sato_et_al_2020c&diff=171699&oldid=prevScipediacontent: Scipediacontent moved page Draft Content 720619549 to Sato et al 2020c2020-09-23T13:15:46Z<p>Scipediacontent moved page <a href="/public/Draft_Content_720619549" class="mw-redirect" title="Draft Content 720619549">Draft Content 720619549</a> to <a href="/public/Sato_et_al_2020c" title="Sato et al 2020c">Sato et al 2020c</a></p>
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<td colspan='1' style="background-color: white; color:black; text-align: center;">Revision as of 13:15, 23 September 2020</td>
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</td></tr></table>Scipediacontenthttps://www.scipedia.com/wd/index.php?title=Sato_et_al_2020c&diff=171698&oldid=prevScipediacontent: Created page with "== Abstract == The expansion of cement paste can occur as a result of secondary ettringite formation due to attack by sulfates. It has been proposed that this expansion is af..."2020-09-23T13:15:43Z<p>Created page with "== Abstract == The expansion of cement paste can occur as a result of secondary ettringite formation due to attack by sulfates. It has been proposed that this expansion is af..."</p>
<p><b>New page</b></p><div>== Abstract ==<br />
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The expansion of cement paste can occur as a result of secondary ettringite formation due to attack by sulfates. It has been proposed that this expansion is affected by coexisting hydration products such as calcium-silicate-hydrates (C-S-H), although the mechanism has not yet been clarified. The present study experimentally examined the effects of coexisting materials on secondary ettringite formation. Synthesized monosulfate and coexisting materials such as C-S-H were mixed with a sodium sulfate solution. The secondary ettringite proportion was markedly increased by the presence of C-S-H, and calcium-aluminate-silicate-hydrates (C-A-S-H) containing four-coordinate Al were formed in these samples. It is evident that ettringite is likely to form from four-coordinate Al, and that C-S-H promotes secondary ettringite formation because it transitions six-coordinate Al derived from the monosulfate to four-coordinate Al by substituting Al in the Si chains.<br />
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== Full document ==<br />
<pdf>Media:Draft_Content_720619549p606.pdf</pdf></div>Scipediacontent