Aptifirst

Concrete Workability Test

The CTPT 3 is a computer-controlled workability tester for fresh cement mortars and wet concrete mixes that rapidly determines true engineering parameters about their flow properties or workability.

The conventional method of assessing the workability of cementitious mixes is the slump test, in which a standardized bucket filled with the mix is inverted, and the height of the resulting heap measured. The CTPT 3 engineering information allows, for example, batch to batch quality to be monitored, for troubleshooting.

Related articles:

Issue 2011-04 Study on polypropylene fiber reinforced mortars and concretes

Rheological properties of fresh polypropylene fiber reinforced mortar and concrete

The first step of the experimental activity was to identify the rheological behavior of PFRFM and PFRFC, which was completed using experimental flow curves and applying adequate models and equations....

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Issue 2018-02 Cement manufacturing

Innovative superplasticizers for thermally activated (calcined) clays

The use of thermally activated (calcined) clays as supplementary cementitious materials (SCMs) in cement represents a promising optimization step for ordinary Portland cement in terms of environmental...

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Issue 2012-04

Process for the preparation of cement, motars, concrete compositions containing a calcium carbonate-based filler (pre)-treated with a superplasticizer, compositions and cement products obtained and their applications

(11) EP 2 423 265 A1 (22) 24.08.2010 (43) 29.02.2012 (71) Omya Development AG, 4665 Oftringen (CH) (57) The invention concerns a PROCESS for the preparation of cement/mortar/concrete (for...

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Issue 2013-01

Admixtures for shrink reduction of Portland cement-based mortars and concretes

(10) WO 2012/162292 A2 (22) 22 May 2012 (43) 29 November 2012 (71) PREMIER MAGNESIA, LLC [US/US]; 300 Barr Rarbor Drive, Suite 250, West Conshohocken, Pennsylvania 19428 (US) (57)  Portland...

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Issue 2015-12 Schleibinger

The 25th Rheological Colloquium is coming

The Schleibinger colloquium being held in March 2016 in the German city of Regensburg will be a highlight for all those involved in the processability and workability of concrete and mortars. For...

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