Development of grout for additional seal embankment dams

Development of grout for additional seal embankment dams

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The technology of sealing sand and gravel by chemical injection has been known and used for a long time. Chemical grouting is however expensive and sometimes the use of cement does not lead to the desired effect. That is why we are trying to find new materials and methods of injection. Clay and cement are added to a mixture save chemical products. Clay-cement mixes are used not only because they are better quality, but also because these mixtures have a tendency to penetrate better into incoherent sediments that would need an additional sealant of a chemical injection. In order to reduce cost in future, ordinary clay is replaces in the mixture secondary raw materials can be a suitable substitute for ordinary clay to a certain extent. This is true above all for fly ash. This paper deals with the appropriateness of using fly ash (secondary raw material), cement and lime (binders) and liquefying additives and examining their properties in the mixture. The aim of the paper is to propose the optimal injection mixture for additional sealing of earth dams.

The technology of sealing sand and gravel by chemical injection has been known and used for a long time. Chemical grouting is however expensive and sometimes the use of cement does not lead to the desired effect. That is why we are trying to find new materials and methods of injection. Clay and cement are added to a mixture save chemical products. Clay-cement mixes are used not only because they are better quality, but also because these mixtures have a tendency to penetrate better into incoherent sediments that would need an additional sealant of a chemical injection. In order to reduce cost in future, ordinary clay is replaces in the mixture secondary raw materials can be a suitable substitute for ordinary clay to a certain extent. This is true above all for fly ash. This paper deals with the appropriateness of using fly ash (secondary raw material), cement and lime (binders) and liquefying additives and examining their properties in the mixture. The aim of the paper is to propose the optimal injection mixture for additional sealing of earth dams.

additional sealing earth dams; injection; grout; clay; clay suspensions; lime; cement; ash; yield fluidity; consistency; contraction, strenght

additional sealing earth dams; injection; grout; clay; clay suspensions; lime; cement; ash; yield fluidity; consistency; contraction, strenght

KOCIÁNOVÁ, M.; ČERNÝ, V.; DROCHYTKA, R.

2016

25.06.2015

Elsevier

Nizozemsko

7th Scientific-Technical Conference on Material Problems in Civil Engineering MATBUD'2015

Tomasz Tracz, Izabela Hager

1877-7058

Procedia Engineering

108

1

Spojené království Velké Británie a Severního Irska

632

638

7

https://www.sciencedirect.com/science/article/pii/S1877705815011455

http://hdl.handle.net/11012/194743

1-s2.0-S1877705815011455-main