1.0MEVA Caribbeanhttps://meva.net/en-cbdanclarkhttps://meva.net/en-cb/author/danclark/rich600338<blockquote class="wp-embedded-content" data-secret="bS2rdR1ROk"><a href="https://meva.net/en-cb/oldest-concrete-structures/">The oldest concrete structures that have lasted</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://meva.net/en-cb/oldest-concrete-structures/embed/#?secret=bS2rdR1ROk" width="600" height="338" title="“The oldest concrete structures that have lasted” — MEVA Caribbean" data-secret="bS2rdR1ROk" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /*! This file is auto-generated */ !function(d,l){"use strict";var e=!1,o=!1;if(l.querySelector)if(d.addEventListener)e=!0;if(d.wp=d.wp||{},!d.wp.receiveEmbedMessage)if(d.wp.receiveEmbedMessage=function(e){var t=e.data;if(t)if(t.secret||t.message||t.value)if(!/[^a-zA-Z0-9]/.test(t.secret)){for(var r,a,i,s=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),n=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),o=new RegExp("^https?:$","i"),c=0;c<n.length;c++)n[c].style.display="none";for(c=0;c<s.length;c++)if(r=s[c],e.source===r.contentWindow){if(r.removeAttribute("style"),"height"===t.message){if(1e3<(i=parseInt(t.value,10)))i=1e3;else if(~~i<200)i=200;r.height=i}if("link"===t.message)if(a=l.createElement("a"),i=l.createElement("a"),a.href=r.getAttribute("src"),i.href=t.value,o.test(i.protocol))if(i.host===a.host)if(l.activeElement===r)d.top.location.href=t.value}}},e)d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",t,!1),d.addEventListener("load",t,!1);function t(){if(!o){o=!0;for(var e,t,r,a=-1!==navigator.appVersion.indexOf("MSIE 10"),i=!!navigator.userAgent.match(/Trident.*rv:11\./),s=l.querySelectorAll("iframe.wp-embedded-content"),n=0;n<s.length;n++){if(!(r=(t=s[n]).getAttribute("data-secret")))r=Math.random().toString(36).substr(2,10),t.src+="#?secret="+r,t.setAttribute("data-secret",r);if(a||i)(e=t.cloneNode(!0)).removeAttribute("security"),t.parentNode.replaceChild(e,t);t.contentWindow.postMessage({message:"ready",secret:r},"*")}}}}(window,document); </script> https://meva.net/en-asia/wp-content/uploads/sites/23/2022/01/Concrete-Blog-Feature-2.jpg1920500Concrete is a common building material that is used prolifically in the construction of many buildings and infrastructure projects. The strength, durability, and flexibility of this material has added to its popularity. Yet concrete has actually been around since ancient times – some of the oldest buildings that humans created are built with early forms […]