{"version":"1.0","provider_name":"Betoni-lehti","provider_url":"https:\/\/betoni.com\/lehti","author_name":"Nina Loisalo","author_url":"https:\/\/betoni.com\/lehti\/author\/nina-loisalorakennusteollisuus-fi\/","title":"Ettringiitti ja ohuthietutkimus - Betoni-lehti","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"4VvJF8EFzM\"><a href=\"https:\/\/betoni.com\/lehti\/2026\/05\/25\/ettringiitti-ja-ohuthietutkimus\/\">Ettringiitti ja ohuthietutkimus<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/betoni.com\/lehti\/2026\/05\/25\/ettringiitti-ja-ohuthietutkimus\/embed\/#?secret=4VvJF8EFzM\" width=\"600\" height=\"338\" title=\"&#8221;Ettringiitti ja ohuthietutkimus&#8221; &#8212; Betoni-lehti\" data-secret=\"4VvJF8EFzM\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/betoni.com\/lehti\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/betoni.com\/lehti\/wp-content\/uploads\/sites\/4\/2026\/05\/ettringiittikiteita-betonin-ilmahuokosessa_1920x1080px.jpg","thumbnail_width":1920,"thumbnail_height":1080,"description":"Ettringiitti on sementin varhainen hydrataatiotuote, jota syntyy ja jota on aina kaikissa portlandsementtisideaineisissa betoneissa. T\u00e4m\u00e4 tuntuu unohtuvan liian usein ohuthietutkijoilta. My\u00f6sk\u00e4\u00e4n sit\u00e4 ei aina tiedosteta, ett\u00e4 ettringiitin syntyvaihetta ei ohuthietutkimuksella voi m\u00e4\u00e4ritt\u00e4\u00e4: taustalla voi my\u00f6s olla esimerkiksi sulfaatti- tai sulfidikorroosio."}