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H. Houari 2008 Effect of a high calcite filler addition upon microstructural, mechanical, shrinkage and transport properties of a mortar Cement and Concrete Research

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action and microstructure of mortars, 11th Nordic Symposium on Building Physics , NSB2017, Trondheim, Norway, 11-14 June 2017, Energy Procedia , Vol. 132 , 2017 , pp. 670 ‒ 675 . [7

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the cement mortar that determines the specific properties of this concrete [ 1 ]. The composition of the self-compacting cement mortar (SCM) is characterized with (i) a large diversity of water-reducing admixtures, (ii) a high content of

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instance, steel slag decreased the workability of concrete [ 2 ], also WA decreased the workability, that extra water needed to be added [ 3 ]. On the other hand, mortar flow was slightly increased with increased in GP addition [ 4 ]. Additionally, GP

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Pozzolanic reaction simply consists of an acid–base reaction between calcium hydroxide (Ca(OH) 2 ), and silicic acid (H 4 SiO 4 , or Si(OH) 4 ). The reactivity of pozzolans, in the case of lime-based mortars, is attributed to their content in amorphous silica

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Introduction The decorative cement mortars and concretes are an artificial imitation of the natural stones. The main advantage of these artificial stones is their better workability, but the durability and stability are their

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[ 5 ] Nano Fe 2 O 3 Nano silica (NS) – 2, 3, 5, 10% for cement Cement mortar Compressive strength, flexural strength

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Abstract  

Roman ancient mortars have been widely studied, in connection with both diagnosis and application required for restoring. Thermoanalytical experiments performed on mortars from Pompeii and Herculaneum provided a very good understanding of the technology employed. The mortars from Pompeii were obtained by the proper mixing of lime and marble grains while mortars of Herculaneum by lime and silicates compounds. The position of the endothermic peak of calcite decomposition showed important variations in the different samples studied, which was assigned to the different crystallinity and particle sizes. Experiments under CO2 flow confirmed the presence of magnesium calcium carbonates.

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1 Introduction In recent years usage of self-compacting concrete and self-levelling mortar has highly increased because of its economical and time benefits [ 1 ]. The preparation of self-compacting concrete water plays a vital role in the

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Abstract  

The use of thermal analysis in studying ancient mortars in English cathedrals is explained. Thermal analysis can be used to investigate both mortar and stone in dated structures. Analysis of ancient mortars show that though recarbonated, they remain soft, yielding to structural deformations. The use of hard (cement mortar) in modern renovation can result in micro-cracking in the stone and subsequent chemical attack from the atmosphere. Contrary to the literature, data developed in the present study suggests that most medieval mortars have reached a near total state of recarbonation.

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