Measurement method for consistency of polymer-modified sprayed mortar with vane-type viscometer

Title: Measurement method for consistency of polymer-modified sprayed mortar with vane-type viscometer
Author(s): Kazuo ICHIMIYA 1, Kimiaki ZAITSU 2, and Makoto ETOH
Paper category : conference
Book title: International RILEM Conference on Advances in Construction Materials Through Science and Engineering
Editor(s): Christopher Leung and K.T. WAN
ISBN: 978-2-35158-116-2
e-ISBN: 978-2-35158-117-9
Publisher: RILEM Publications SARL
Publication year: 2011
Pages: 231 - 238
Total Pages: 8
Nb references: 3
Language: English

Abstract: Flow value and slump are applied for the evaluation of consistency of polymer-modified sprayed mortar. These values are very easy to use, but can’t explain the consistency in detail. Moreover the prediction of pumpability, rebound and sagging are almost impossible, because flow value and slump are not physical quantity. Therefore new evaluation indexes are required to improve the construction quality. A viscometer with four vanes was used for evaluate the fresh properties of polymer-modified sprayed mortar in this study. And the applicability of this technique was examined. As a result, the recommendation of experimental conditions for the evaluation of polymer-modified mortar is presented. Moreover, new evaluating indexes derived from the - curve, the curve of shear stress in dependence of the rotational angle of vane, were proposed.

Online publication: 2011-10-31
Publication type : full_text
Public price (Euros): 0.00