Effect of water binder ratio on the early hydration of natural hydraulic lime

2014 ◽  
Vol 48 (10) ◽  
pp. 3431-3441 ◽  
Author(s):  
Shuqiang Xu ◽  
Julin Wang ◽  
Yanzhong Sun
Keyword(s):  
Early Hydration ◽  
Hydraulic Lime ◽  
Effect Of Water ◽  
Natural Hydraulic Lime ◽  
Binder Ratio ◽  
Water Binder Ratio

scholarly journals Bond Properties of NHL-Based Mortars with Viscosity-Modifying Water-Retentive Admixtures

Minerals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 685
Author(s):  
Tomáš Žižlavský ◽  
Patrik Bayer ◽  
Martin Vyšvařil
Keyword(s):  
Water Content ◽  
Adhesive Strength ◽  
Water Retention ◽  
Minor Role ◽  
Clay Brick ◽  
Hydraulic Lime ◽  
Natural Hydraulic Lime ◽  
Binder Ratio ◽  
Paste Viscosity ◽  
A Minor

This article studies the influence of biopolymeric viscosity-modifying admixtures with water-retentive function on the physico-mechanical properties of natural hydraulic lime-based mortars and their adherence to the traditional fired-clay brick substrate. The use of admixtures increases the water/binder ratio, which in turn leads to a decrease in the strength of the mortars. The viscosity-modifying function improves the adhesive strength between mortar and pre-wetter brick by increasing the binder paste viscosity, while the water-retentive function along with increased water content may lead to a decrease in adhesive strength. On the contrary, water retention and increased water content are beneficial on a dry surface, while paste viscosity plays only a minor role. When subjected to temperature-varying cycles, the mortars are more prone to in-mortar failure during the pull-off test. The air-entraining function of some admixtures improves the frost resistance of the mortars; however, it would negatively affect the adhesive strength by incorporating pores into the contact zone between the mortar and brick substrate. This study showed that the use of some of the studied admixtures may improve the adhesion of mortar to the brick substrate.

scholarly journals Effect of water-binder ratio on properties of phosphogypsum binder

2019 ◽  
Vol 660 ◽  
pp. 012071 ◽  
Author(s):  
G Bumanis ◽  
J Zorica ◽  
D Bajare ◽  
A Korjakins
Keyword(s):  
Effect Of Water ◽  
Binder Ratio ◽  
Water Binder Ratio

scholarly journals The effect of water binder ratio on strength development of class C fly ash geopolymer mortar prepared by dry geopolymer powder

2019 ◽  
Vol 258 ◽  
pp. 05032 ◽  
Author(s):  
Arie Wardhono
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Calcium Content ◽  
Strength Properties ◽  
Strength Development ◽  
Effect Of Water ◽  
High Calcium ◽  
Binder Ratio ◽  
Geopolymer Binder ◽  
Water Binder Ratio

The use of geopolymer binder as cement replacement material can reduce the amount of carbon dioxide gas produced during the Portland Cement manufacturing process. However, the main issue of geopolymer binder is in the mixing process of sodium silicate and NaOH which requires specialized knowledge and strict supervision. This paper reports the effect of water binder ratio on strength development of fly ash geopolymer mortar using dry geopolymer powder. Fly ash with high calcium content was used as primary material. The dry geopolymer powder was prepared by wet mixing method which was made by drying a mixture of NaOH solution and limestone for 24 hours. The variations of water to binder ratio were 0.30, 0.35, 0.40, 0.45, and 0.50. Strength properties were measured by compressive strength at the age of 7, 14 and 28 days. The results showed that the water binder ratio significantly affect the strength development of geopolymer mortar prepared by dry geopolymer powder. The water binder ratio of 0.40 gives the highest compressive strength of 10.3 MPa at 28 days. This suggests that the use of dry geopolymer powder on geopolymer mortar production can overcome the difficulties of geopolymer mortar mixing on site.

Strength Development in Cement Admixed Fine-Grained Dredged Marine Soils

2015 ◽  
Vol 802 ◽  
pp. 272-276
Author(s):  
Amira Azhar ◽  
Chee Ming Chan
Keyword(s):  
Bottom Ash ◽  
Strength Development ◽  
High Plasticity ◽  
Fine Grained ◽  
Effect Of Water ◽  
Curing Period ◽  
Binder Ratio ◽  
High Plasticity Clay ◽  
Water Binder Ratio

Dredged marine soils (DMS) are considered as wastes and are currently not being recycled. Solidification of DMS needs to be undertaken before the materials can be reused.This study focused on the development of strength of three solidified fine-grained DMS which are high plasticity clay (CH), high plasticity silt (MH) and low plasticity silt (ML) admixed with cement and bottom ash. This paper discussed the effect of water-binder ratio and curing period on the strength development of the solidified DMS. The results show that the strength increased with prolonged curing. The strength increased when the water-binder ratio was decreased. CH samples with water-binder (w/b) ratio =1 has the highest strength that are up to 4.7 MPa. Optimal w/b ratio for solidified DMS is w/b=3.

Effect of water–binder ratio and fly ash on the homogeneity of concrete

2013 ◽  
Vol 38 ◽  
pp. 1129-1134 ◽  
Author(s):  
Guiming Wang ◽  
Yun Kong ◽  
Tao Sun ◽  
Zhonghe Shui
Keyword(s):  
Fly Ash ◽  
Effect Of Water ◽  
Binder Ratio ◽  
Water Binder Ratio
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