Concept

Clinker

Publications associées (273)

Utilisation of alkali activated glass powder in binary mixtures with Portland cement, slag, fly ash and hydrated lime

This paper evaluates feasibility of alkali activation to boost the reactivity and cementitious properties of recycled glass powder ( GP), when it is used in four different binary mixtures with ordinary Portland cement ( OPC), alkali activated slag or fly a ...

Springer2017

Outcomes of the RILEM round robin on degree of reaction of slag and fly ash in blended cements

Karen Scrivener, Barbara Lothenbach, Mohsen Ben Haha, Pawel Tadeusz Durdzinski

Working group 2 of the RILEM TC 238-SCM undertook a comparison of laboratories and techniques for the quantification of the degree of reaction of supplementary cementitious materials in blended cements. A common set of binary pastes of Portland cement with ...

Springer Verlag2017

The Search for Affordable Cement and Concrete in the 18th and 19th Century

Salvatore Aprea

At the turn of the 19th century, the production and use of concrete were limited by the unavailability of raw materials to produce good cement in several places. From that time onwards, the progress of chemistry and a number of empirical discoveries opened ...

Springer2017

The Atomic-Level Structure of Cementitious Calcium Silicate Hydrate

David Lyndon Emsley, Karen Scrivener, Paul Bowen, Aaron James Rossini, Albert Hofstetter, Brennan James Walder, Aslam Kunhi Mohamed, Abhishek Kumar, Bhuvanesh Srinivasan

Efforts to tune the bulk physical properties of concrete are hindered by a lack of knowledge related to the atomic-level structure and growth of calcium silicate hydrate phases, which form about 50-60% by volume of cement paste. Here we describe the first ...

2017

Optimization of SEM-EDS to determine the C-A-S-H composition in matured cement paste samples

Karen Scrivener, John Espen Rossen

Microanalysis of characteristic X-rays in the SEM is a powerful method to assess the chemical composition of phases in cement pastes, in particular the calcium silicate hydrate containing aluminium (C-A-S-H). Nevertheless, many variables may influence the ...

Elsevier Science Inc2017

Low-temperature curing strength enhancement in cement-based materials containing limestone powder

Franco Alberto Zunino Sommariva

With the ongoing sustainability movement, the incorporation of limestone powder in cementitious binders for concrete in the U.S. has become a subject of renewed interest. In addition to accelerating the early age hydration reactions of cementitious systems ...

Springer2017

Phase assemblage of composite cements

Karen Scrivener, Mohsen Ben Haha, Pawel Tadeusz Durdzinski

The phase assemblage of binary Portland cements with 45 wt% replacement by calcareous fly ash and slag has been investigated by experiment, mass balance and thermodynamic simulations. The input for these calculations was based on clinker reaction measured ...

Elsevier2017

Effect of fiber orientation and specimen thickness on the tensile response of strain hardening UHPFRC mixes with reduced Embodied Energy

Emmanuel Denarié, Amir Hajiesmaeili

Ultra-High Performance Fiber Reinforced Concretes (UHPFRC) have demonstrated their potential to contain the explosion of maintenance costs (Economy and Environment) for civil engineering structures, due to their extremely low permeability associated with t ...

Springer Netherlands2017

Multi-Scale Modeling of the Alkali-Silica Reaction in Concrete

Aurelia Isabel Cuba Ramos

The alkali-silica reaction (ASR) is one of the most common causes of internal concrete degradation. This chemical reaction occurs between the amorphous silica contained inside the aggregates, and the alkalis of the cement pore solution. During the reaction ...

EPFL2017

Preparation and accelerated carbonation of low temperature sintered clinker with low Ca/Si ratio

Xuerun Li

A novel clinker with low Ca/Si ratio and low sintering temperature was synthesized, and the property of the clinker was tested. A clinker sintered from industrial raw materials mainly contains rankinite (Ca3Si2O7), pseudowollastonite (Ca-3(Si3O9)) and ferr ...

Elsevier Sci Ltd2016

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