ACI Global Home Middle East Region Portal Western Europe Region Portal
Email Address is required Invalid Email Address
In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Learn More
Become an ACI Member
Topics In Concrete
Home > Publications > International Concrete Abstracts Portal
Showing 1-5 of 311 Abstracts search results
Document:
SP364_10
Date:
December 1, 2024
Author(s):
Hyeon-Jong Hwang, Jong-Min Lee, Han-Se Moon, and Hong-Gun Park
Publication:
Symposium Papers
Volume:
364
Abstract:
During construction, the load on the slabs can be up to 2 to 3 times their self-weight, which can damage serviceability and structural safety of the slabs with early-age concrete. In the present study, an existing model to predict the load on slabs during construction was modified to account for the use of regular supports and temporary supports in the shoring system, considering construction step where temporary supports are removed. Additionally, the effective supporting area of the shore was introduced to account for the uneven distribution of shores, thereby improving the prediction of construction loads on slabs. To verify the accuracy of the modified model, loads on shores were measured at a wall-type residential building under construction in South Korea. For 2 stories, the loads on shores were measured and the measurement lasted for 45 days. The comparison between predicted and measured slab construction loads showed that the predicted construction load agreed with the measured construction load.
SP-362_50
June 14, 2024
Lucas Mosser, Eric Garcia Diaz, Patrick Rougeau, and François Jacquemot
362
The development of low carbon footprint and high initial compressive strength binders for the precast industry is presented. Binders with a substitution of up to 75% of a normal Portland cement (CEM I) with a mixture of metakaolin and two different limestone additions were developed on mortars. Water/binder ratio reduction (down to 0.25) and thermal treatment (up to 50°C) have been applied to improve initial compressive strength (> 14 MPa at 8 hours). Pozzolanic reaction improved 28 days compressive strength (> 50 MPa). The most technically and environmentally performant binders have been applied to concrete. Concretes with low clinker contents have been produced to achieve the C25/C30 and C40/50 strength classes. Durability performances corresponding to XC4 were assessed via a performance approach (FD P 18-480). A wall with integrated formwork has been industrially manufactured which allowed a carbon footprint reduction of around 30% over its whole life cycle.
DOI:
10.14359/51741019
CI4606Doka
June 3, 2024
Concrete International
46
Issue:
6
With graceful curves and sleek lines, Una Residences is a new addition to the Miami, FL, USA, skyline. To establish an efficient and effective forming process, the concrete contractor turned to engineering support from Doka. Formwork systems from Doka were selected for construction of the foundation perimeter’s single-sided walls and building’s core walls.
CI4603Huso
March 1, 2024
Deborah R. Huso
3
The Arkansas Museum of Fine Arts in Little Rock, AR, USA, has a new folded plate concrete roofline which became the museum's signature architectural element. Built of thin concrete plates arranged in angular folds, the roof covers a series of pavilions branching out like flower stems-creating a glassed-in gathering space for visitors on one end and a dining terrace on the other.
CI4506Ehsani
June 1, 2023
Mo Ehsani
45
For decades in North America, the most ubiquitous type of foundation formwork has been cardboard tubes. To overcome its limitations, including size, resistance to water, surface finish, single use, transportation, storage, and lack of sustainability, and to provide an alternative solution, a new formwork system using fiber-reinforced polymers (FRP) has been developed.
Results Per Page 5 10 15 20 25 50 100
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.