1. bookVolume 7 (2012): Issue 1 (June 2012)
Journal Details
License
Format
Journal
eISSN
1338-7278
ISSN
1338-7278
First Published
29 Mar 2013
Publication timeframe
2 times per year
Languages
English
access type Open Access

Tamping Mortars with Stabilizing and Plasticizing Admixtures

Published Online: 29 Mar 2013
Volume & Issue: Volume 7 (2012) - Issue 1 (June 2012)
Page range: 87 - 94
Journal Details
License
Format
Journal
eISSN
1338-7278
ISSN
1338-7278
First Published
29 Mar 2013
Publication timeframe
2 times per year
Languages
English
Abstract

Boreholes cementing operations at the depth of several kilometers requires the best technology as well as the best materials. To produce the materials satisfying all the requirements concerning the tamping works is possible using the technology of dry building mixes (DBM) prepared at the factories by thorough mixing of accurately dosed components. Using of chemical admixtures allows improving some properties of these mixes. In this work the influence of mineral fillers and chemical admixtures on the properties of the fresh mixture and hardened tamping mortar was investigated. It is established that introduction of the admixture with complex action on the basis of stabilizer Walocel 15-01 and plasticizer Melflux 2651 allows obtaining the fresh mixture with high spreadability. At the same time the value of dehydration approaches to zero which favorably effects on stabilization of fresh mixture and not allows the sedimentation processes to take place. By the X-ray analysis, the positive influence of modification admixtures on the hydration processes in the tamping mortars by activating them was identified. In the result of this, the formation of hydrate phases is accelerated; these phases tightly mud the pore area of tamping stone increasing by this its strength.

Keywords

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