MARC details
| 000 -LEADER |
|---|
| fixed length control field |
02929nam a2200301Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
|---|
| control field |
20250625162452.0 |
| 040 ## - CATALOGING SOURCE |
|---|
| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
|---|
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-20621 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Micro-nano scale pore structure and fractal dimension of ultra-high performance cementitious composites modified with nanofillers |
| 490 0# - SERIES STATEMENT |
|---|
| Volume/sequential designation |
Cement and Concrete Composites, 141, p.105129, 2023 |
| 520 3# - SUMMARY, ETC. |
|---|
| Summary, etc. |
The development of ultra-high performance cementitious composite (UHPCC)represents a significant advancement in the field of concrete science and technology, but insufficient hydration and high autogenous shrinkage relatively increase the pores inside UHPCC, in turn, affecting the macro-performance of UHPCC. This paper, initially, optimized the pore structure of UHPCC using different types and dimensions of nanofillers. Subsequently, the pore structure characteristics of nano-modified UHPCC were investigated by the mercury intrusion porosimeter method and fractal theory. Finally, the fluid permeability of nano-modified UHPCC was estimated by applying the Katz-Thompson equation. Experimental results showed that all incorporated nanofillers can refine the pore structure of UHPCC, but nanofillers with different types and dimensions have various effects on the pore structure of UHPCC. Specifically, CNTs, especially the thin-short one, can significantly reduce the porosity of UHPCC, whereas nanoparticles, especially nano-SiO2, are more conducive to refine the pore size. Among all nanofillers, nano-SiO2 has the most obvious effect on pore structure, reducing the porosity, specific pore volume and most probable pore radius of UHPCC by 31.9 percent, 35.1 percent and 40.9 percent, respectively. Additionally, the pore size distribution of nano-modified UHPCC ranges from 10?1nm-105nm, and the gel pores and fine capillary pores in the range of 3-50 nm account for more than 70 percent of the total pore content, confirming nanofillers incorporation can effectively weaken pore connectivity and induce pore distribution to concentrate at nanoscale. Fractal results indicated the provision of nanofillers reduces the structural heterogeneity of gel pores and fine capillary pores, and induces homogenization and densification of UHPCC matrix, in turn, decreasing the UHPCC fluid permeability by 15.7 percent-79.2 percent. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
ULTRA-HIGH PERFORMANCE CEMENTITIOUS COMPOSITES |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
NANOFILLER MODIFYING |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
PORE STRUCTURE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
FLUID PERMEABILITY |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
FRACTAL THEORY |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Wang, J. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Wang, X. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Ding, S. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Ashour, A. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Yu, F. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Lv, X. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Han, B. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
|---|
| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1o2qAx2OkVuWIxOIRVmbonpiSs7lJ7siv/view?usp=drivesdk">https://drive.google.com/file/d/1o2qAx2OkVuWIxOIRVmbonpiSs7lJ7siv/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
