Controlling ettringite precipitation and rheological behavior in ordinary Portland cement paste by hydration control agent, temperature and mixing

C Jakob, D Jansen, J Dengler, J Neubauer - Cement and Concrete …, 2023 - Elsevier
The influence of ettringite precipitation on the rheological properties during the initial and the
induction period of ordinary Portland cement (OPC) hydration is examined by combining …

Interlaboratory study on rheological properties of cement pastes and reference substances: comparability of measurements performed with different rheometers and …

M Haist, J Link, D Nicia, S Leinitz, C Baumert… - Materials and …, 2020 - Springer
This paper presents the results of an interlaboratory study of the rheological properties of
cement paste and ultrasound gel as reference substance. The goal was to quantify the …

Relating ettringite formation and rheological changes during the initial cement hydration: A comparative study applying XRD analysis, rheological measurements and …

C Jakob, D Jansen, N Ukrainczyk, E Koenders, U Pott… - Materials, 2019 - mdpi.com
In order to gain a deeper understanding of the rheological development of hydrating
ordinary Portland cement (OPC) pastes at initial state, and to better understand their …

Performance of rice husk ash as supplementary cementitious material after production in the field and in the lab

M Thiedeitz, W Schmidt, M Härder, T Kränkel - Materials, 2020 - mdpi.com
Supplementary cementitious materials (SCM) can reduce the total amount of Portland
cement clinker in concrete production. Rice husk ashes (RHA) can be converted from an …

Rice husk ash as an additive in mortar–Contribution to microstructural, strength and durability performance

M Thiedeitz, B Ostermaier, T Kränkel - Resources, Conservation and …, 2022 - Elsevier
Facing the urgent need for more sustainable construction materials all over the world,
mortars containing the agricultural by-product Rice Husk Ash (RHA) as supplementary …

Penetration test as a fast method to determine yield stress and structural build-up for 3D printing of cementitious materials

U Pott, D Stephan - Cement and Concrete Composites, 2021 - Elsevier
Abstract 3D printing technology is becoming increasingly important in the construction
sector, leading to changes in material requirements compared to traditional manufacturing …

Early performances of cement paste in the presence of triethanolamine: Rheology, setting and microstructural development

Z Lu, X Peng, T Dorn, T Hirsch… - Journal of Applied …, 2021 - Wiley Online Library
The effect of triethanolamine (TEA) at various dosages on the early performance of cement
paste was systematically evaluated through the techniques of rheological measurements …

Investigation of the incompatibilities of cement and superplasticizers and their influence on the rheological behavior

U Pott, C Jakob, D Jansen, J Neubauer, D Stephan - Materials, 2020 - mdpi.com
The rheological behavior of cement paste and the improvement of its flowability takes center
stage in many research projects. An improved flowability can be achieved by the addition of …

Effect of superplasticizer addition time and metakaolin source on the early-age hydration of limestone calcined clay cement (LC3)

PR De Matos, JS Andrade Neto, RD Sakata… - Materials and …, 2022 - Springer
It is known that superplasticizer (SP) presence and addition time play an important role in
the hydration of Portland cement (PC). However, this is not clear yet for limestone calcined …

The influences of cement hydration and temperature on the thixotropy of cement paste

J Link, T Sowoidnich, C Pfitzner, T Gil-Diaz… - Materials, 2020 - mdpi.com
The rheological properties of fresh cement paste are highly influenced by a large number of
parameters, among which the most important factors are the applied shear stress, and the …