Detail publikace

Pore structure development of blended G-oil well cement submitted to hydrothermal curing conditions

Originální název

Pore structure development of blended G-oil well cement submitted to hydrothermal curing conditions

Anglický název

Pore structure development of blended G-oil well cement submitted to hydrothermal curing conditions

Jazyk

en

Originální abstrakt

Ground granulated blast-furnace slag (BFS) and silica fume (SF) were used to enhance properties of G-Oil Well cements under hydrothermal conditions (1.2 MPa, 200 degrees C). Pore structure development depending on phase composition was studied. Structure depletion due to transformation of C-S-H to alpha-C2SH and C6S2H3 in referential samples was avoided when more than 20 wt.% of cement was replaced. C-S-H with C/S ratio similar to 1 and C-A-S-H phases were formed reflecting the amount of BFS and SF. Carbonation and formation of calcite from vaterite increased total porosity. Transformation through aragonite had the opposite effect and increased the gel pores portion. (C) 2017 Elsevier Ltd. All rights reserved.

Anglický abstrakt

Ground granulated blast-furnace slag (BFS) and silica fume (SF) were used to enhance properties of G-Oil Well cements under hydrothermal conditions (1.2 MPa, 200 degrees C). Pore structure development depending on phase composition was studied. Structure depletion due to transformation of C-S-H to alpha-C2SH and C6S2H3 in referential samples was avoided when more than 20 wt.% of cement was replaced. C-S-H with C/S ratio similar to 1 and C-A-S-H phases were formed reflecting the amount of BFS and SF. Carbonation and formation of calcite from vaterite increased total porosity. Transformation through aragonite had the opposite effect and increased the gel pores portion. (C) 2017 Elsevier Ltd. All rights reserved.

BibTex


@article{BUT145810,
  author="Eva {Kuzielova} and Matúš {Žemlička} and Jiří {Másilko} and Martin {Palou}",
  title="Pore structure development of blended G-oil well cement submitted to hydrothermal curing conditions",
  annote="Ground granulated blast-furnace slag (BFS) and silica fume (SF) were used to enhance properties of G-Oil Well cements under hydrothermal conditions (1.2 MPa, 200 degrees C). Pore structure development depending on phase composition was studied. Structure depletion due to transformation of C-S-H to alpha-C2SH and C6S2H3 in referential samples was avoided when more than 20 wt.% of cement was replaced. C-S-H with C/S ratio similar to 1 and C-A-S-H phases were formed reflecting the amount of BFS and SF. Carbonation and formation of calcite from vaterite increased total porosity. Transformation through aragonite had the opposite effect and increased the gel pores portion. (C) 2017 Elsevier Ltd. All rights reserved.",
  address="PERGAMON-ELSEVIER SCIENCE LTD",
  chapter="145810",
  doi="10.1016/j.geothermics.2017.03.001",
  howpublished="online",
  institution="PERGAMON-ELSEVIER SCIENCE LTD",
  number="68",
  year="2017",
  month="march",
  pages="86--93",
  publisher="PERGAMON-ELSEVIER SCIENCE LTD",
  type="journal article in Web of Science"
}