{"product_id":"faisy-soares-influence-of-adding-metakaolin-to-high-strength-concrete-9786207642908","title":"Influence of adding metakaolin to high-strength concrete","description":"The need to build structures that are durable and resistant to aggressive environments has led to the development of high-strength concrete. Such activities generate high cement consumption, a factor that implies CO2 emissions. The aim of this study was to evaluate the influence of pozzolan with the addition of metakaolin on the physical-mechanical characteristics of high-strength concrete, comparing them with the standard formulation. Tests were carried out to characterize the aggregates (NBR 7211), petrography tests (NBR 15577 - 3\/08) and alkali-aggregate reaction (NBR 15577-05\/08). Test specimens were made in accordance with standard NBR 5738-1\/04 with additions of 0%, 4%, 6%, 8% and 10% of metakaolin to replace CP V cement in the formulations. Spreading and compressive strength tests were carried out in accordance with standards NBR 7223\/1992 and NBR 5739-8\/94 respectively. All the formulations with added metakaolin had a higher 28-day breaking strength than the standard formulation. These results provide an alternative for reducing CO2 emissions, as well as improving the quality and durability of the concrete.","brand":"Our Knowledge Publishing","offers":[{"title":"Default Title","offer_id":53683265995094,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/5829\/5382\/files\/product_image_9786207642908_1.jpg?v=1778851887","url":"https:\/\/www.momoxbooks.com\/products\/faisy-soares-influence-of-adding-metakaolin-to-high-strength-concrete-9786207642908","provider":"momoxbooks","version":"1.0","type":"link"}