Recently added articles from ACI Materials Journal:
Material Behavior of an Ultra-High-Performance Concrete Forming Die for Sheet Metal Hydroforming
Nov 01, 2009; ... Economic requirements and an increasing number of part variants have led to the development of new sheet metal forming techniques and low cost forming dies. For sheet metal hydroforming, these dies have to withstand pressures of approximately 100 MPa (14.50 ksi) to form detailed and uniform ...
Cracking Sensitivity of Normal- and High-Strength Concretes
Nov 01, 2009; ... The influence of technological parameters on the cracking performance of concretes with regards to mixture design, curing, and use of admixtures in normal-strength concretes (NSC) and high-strength concretes (HSC) was investigated. It is concluded that shrinkage and cracking sensitivity are ...
Pervious Concrete: Compaction and Aggregate Gradation
Nov 01, 2009; ... Pervious concrete is very different from traditional portland-cement concrete (PCC). Therefore, there are open questions regarding the suitability of the current standard concrete testing protocols as they may be applied to pervious concrete. There are unique features associated with pervious ...
Influence of Mixing Sequence on Cement-Admixture Interaction
Nov 01, 2009; ... Cement pastes containing a high-range water-reducing admixture and prepared using various mixing sequences were investigated using dynamic rheology. Samples were prepared using delayed admixture addition, delayed water addition, double mixing, and vigorous mixing techniques. The effects of the ...
Acoustic Emission and Ultrasound for Damage Characterization of Concrete Elements
Nov 01, 2009; ... The acoustic emission (AE) technique is widely used for real time damage detection in concrete. It uses stress waves emerging from nucleation and propagation of cracks recorded on the surface of the material by suitable sensors. In the present study, AE is used to monitor the deterioration ...