Water distribution modelling of capillary absorption in cementitious materials
Artikel i vetenskaplig tidskrift, 2019
In this paper, a novel capillary absorption model is proposed to investigate the capillary absorption process of cementitious materials. This model mainly consider the influence of tortuosity of the capillary pores of cement paste, which is the key factor affecting the capillary absorption process. The proposed model is verified by the capillary absorption process of paste samples with different water/cement ratios. The absorption height and water content profile of testing samples are measured by X-ray computed tomography. The results show that the proposed capillary absorption model that takes the tortuosity of capillary pores into consideration is suitable for investigating the capillary absorption process of water in cementitious materials.
X-ray computed tomography
Capillary absorption process
Novel capillary absorption model
Capillary pore tortuosity
Cementitious materials
Författare
Jianchao Zhang
China Earthquake Administration
Shenzhen University
Shuxian Hong
Shenzhen University
Biqin Dong
Shenzhen University
Luping Tang
Chalmers, Arkitektur och samhällsbyggnadsteknik, Byggnadsteknologi
Shenzhen University
Chen Lin
Shenzhen University
Zhichao Liu
Shenzhen University
Feng Xing
China Earthquake Administration
Construction and Building Materials
0950-0618 (ISSN)
Vol. 216 468-475Ämneskategorier
Byggproduktion
Vattenteknik
Annan fysik
DOI
10.1016/j.conbuildmat.2019.05.023