Alkali Activation of Blast Furnace Slag by Various Types of Activators

Koňařík

2016

MSF

Alkali activated systems are materials formed by alkali-activation of latent hydraulic or pozzolanic materials. The outcome is a polymeric structure with properties comparable to materials based on cement.The principle of the experiment is to compare selected properties of alkali-activated materials based on blast furnace slag and using various types of activator (sodium water glass, potassium water glass, DESIL AL and sodium metasilicate) to binders based on white and Portland cements of the highest quality. The samples were left for one year in environments simulating the conditions in the interior and exterior. Selected physical-mechanical properties were evaluated and compared.

Section: Introductionmentioning

confidence: 71%

“…Particularly secondary raw materials of metallurgical industry, such as blast furnace slags achieve excellent properties. Other useful secondary raw materials are fly ashes of the electricity industry [4,5,6,7,8].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Selected Properties of Portland Cement Based Materials and Alkali Activated Materials Based on Granulated Blast Furnace Slag

Mec

Koňařík

2016

MSF

“…Properties of the individual activators are shown in [17]. Activators amount was chosen based on the weight of blast furnace slag and according to previous research work [18,19].…”

Section: Other Modificationsmentioning

confidence: 99%

Preparation and Verification of Properties of Alkali-Activated Composite

Janalík

2019

SSP

Self Cite

The paper deals to create alkali activated composite based on the recipe of high-strength concrete. The paper includes the review of conditions for high-strength concrete proposing and preparation. Principles of design of high performance concrete based on Portland cement as a binder were described. The experiment was focused on the strength investigation of composites with different ratios of cement to slag, and also the effect of used activator on strength parameters was investigated.

“…Binders, Materials and Technologies in Modern Construction II Table 3 lists prepared mixtures, whose properties were subsequently tested. Composition of alkali activated mixtures is based on previous research work [6,7,8].…”

mentioning

confidence: 99%

Testing of Possible Use of Fine-Grained Alkali Activated Composites in the Construction Industry

Mec

Závrský

2016

MSF

Alkali-activated materials are formed by the alkaline activation of inorganic materials and are characterized by the wide range of potential use. The objective of experiment was to investigate the possibility of use fine-grained alkali activated composites in the construction industry. Selected properties of alkali-activated systems based on granulated blast furnace slag and fine-grained aggregates were determined. At the beginning of the experiment, different samples prepared of 3 types of activators were tested, basic properties (time of workability, initial and final setting time, compressive and flexural strength) and also a possibility of selected retarder use was determined. Then, samples with the best potencial to presumed use were tested in detail and a possibility use as a substitute for selected construction materials were evaluated. On the basis of determined properties, prepared composites could be used as reprofiling mortars, materials for cracks repairing or socle plasters.