Effect of precursors on the properties of one-part alkali-activated composites (Record no. 23478)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02770 a2200217 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20251008110203.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 251008b |||||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | AIKTC-KRRC |
| Transcribing agency | AIKTC-KRRC |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Author | Singh, S. K. |
| 9 (RLIN) | 7121 |
| 245 ## - TITLE STATEMENT | |
| Title | Effect of precursors on the properties of one-part alkali-activated composites |
| 250 ## - EDITION STATEMENT | |
| Volume, Issue number | Vol.99(5), May |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Thane |
| Name of publisher, distributor, etc. | ACC LTD |
| Year | 2025 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Pagination | 29-39p. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Portland cement has been the most reliable cementitious binder for over 200 years but is responsible for more than 7 % of global greenhouse gas emissions. The alkali-activated binder (AAB) has been developed to reduce carbon emissions significantly. The application of conventional (two-part) alkali-activated binders is primarily limited to small-scale projects owing to several challenges, including transportation, mixing with liquid alkali solutions and placing. Therefore, this study explores an alternative approach to developing binary and ternary binders of one-part AABs. The precursors fly ash (FA) and Ground granulated blast furnace slag (GGBFS) binary binder utilise a solid activator (sodium metasilicate pentahydrate) and agroindustrial waste materials. In contrast, rice husk ash (RHA) was added as a precursor for the ternary binder. Various mixtures were fabricated with different proportions of source materials (FA, GGBFS, and RHA) and curing temperatures (ambient and at 80° C for 3 hours). Based on the optimum strength of binary pastes, alkali-activated concrete (AAC) was developed. The AAC was then employed for different mechanical (split tensile and compressive strength) and durability tests (resistance to sulphate attack and water absorption) to assess its properties. Experimental studies revealed that an AAB composed of a 30:70 weight ratio of FA to GGBFS and a 12 % solid alkali activator achieved a maximum compressive strength of 25.32 MPa under ambient curing conditions. In addition, the results of the ternary paste indicate that up to 10 % of the addition of RHA into the mix resulted in improved compressive strength. SEM analysis also demonstrated the formation of a denser micro-structure under heat curing and at 10 % RHA-based ternary mix. Further, adding basalt fibres (0.5 % volume fraction of concrete) does not significantly impact the mechanical and durability properties. These findings suggest that alternative sustainable binders effectively utilise industrial waste and could reduce the carbon footprint significantly. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Civil Engineering |
| 9 (RLIN) | 4621 |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Co-Author | Qureshi, Yasmeen |
| 9 (RLIN) | 27292 |
| 773 0# - HOST ITEM ENTRY | |
| Title | Indian Concrete Journal - ICJ |
| Place, publisher, and date of publication | Thane ACC Limited |
| International Standard Serial Number | 0019-4565 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| URL | https://www.icjonline.com/editionabstract_detail/052025 |
| Link text | Click here |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Articles Abstract Database |
| Withdrawn status | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Total Checkouts | Barcode | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | School of Engineering & Technology (PG) | School of Engineering & Technology (PG) | Archieval Section | 08/10/2025 | 2025-1515 | 08/10/2025 | 08/10/2025 | Articles Abstract Database |