Rheological Properties of Cement Paste Blended Blast Furnace Slag or Fly Ash Powder

2008 ◽  
Vol 45 (6) ◽  
pp. 336-344 ◽  
Author(s):  
Jong-Taek Song ◽  
Hyo-Sang Park ◽  
Seung-Ho Byun ◽  
Dong-Woo Yoo
Keyword(s):  
Blast Furnace ◽  
Fly Ash ◽  
Rheological Properties ◽  
Cement Paste ◽  
Blast Furnace Slag ◽  
Furnace Slag

scholarly journals Influence of Inter-Particle Distances on the Rheological Properties of Cementitious Suspensions

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7869
Author(s):  
Rajagopalan Sam Rajadurai ◽  
Su-Tae Kang
Keyword(s):  
Blast Furnace ◽  
Fly Ash ◽  
Rheological Properties ◽  
Blast Furnace Slag ◽  
Fine Particles ◽  
Flow Characteristics ◽  
Cementitious Materials ◽  
Supplementary Cementitious Materials ◽  
Particle Sizes ◽  
Furnace Slag

Supplementary cementitious materials (SCMs), such as fly ash (FA), blast furnace slag (BS), and silica fume (SF), have been mostly used as a replacement for Portland cement (PC). Replacing the SCMs with cement can provide improved strength characteristics; however, their applicability depends on the flow characteristics of the fresh mixtures. In this study, the rheological performance of cementitious suspensions in paste scale with different water-to-solid (W/S) volume ratios, varied from 1.25, 1.50, 1.75, 2.00, 2.25, to 2.50, was evaluated. As a result of the rheological tests, the yield stress and plastic viscosity of PC, FA, BS, and SF suspensions decreased as the W/S ratio increased. This study also estimated the inter-particle distances of the cementitious suspensions, and their relationship to the rheological properties was established. The inter-particle distances of the PC, FA, BS, and SF suspensions were in the ranges of 5.74~14.67 µm, 5.18~11.66 µm, 3.82~9.34 µm, and 0.107~0.27 µm, respectively. For very fine particles with a large surface area, the sensitivity to the rheological properties was high and the sensitivity was low when the particle sizes increased, indicating that the rheological properties were more sensitive to fine particles.

Rheological Properties of Ordinary Portland Cement - Blast Furnace Slag - Fly Ash Blends Containing Ground Fly Ash

2009 ◽  
Vol 46 (1) ◽  
pp. 58-68 ◽  
Author(s):  
Hyo-Sang Park ◽  
Dong-Woo Yoo ◽  
Seung-Ho Byun ◽  
Jong-Taek Song
Keyword(s):  
Blast Furnace ◽  
Fly Ash ◽  
Portland Cement ◽  
Rheological Properties ◽  
Blast Furnace Slag ◽  
Ordinary Portland Cement ◽  
Furnace Slag

Effect of Fly Ash and Ground Granulated Blast-Furnace Slag on Sulfuric Acid Resistance of Concrete

2011 ◽  
Vol 243-249 ◽  
pp. 1860-1865
Author(s):  
Bei Xing Li ◽  
Kai Yang ◽  
Jiang Liu ◽  
Ming Kai Zhou
Keyword(s):  
Blast Furnace ◽  
Sulfuric Acid ◽  
Fly Ash ◽  
Cement Paste ◽  
Blast Furnace Slag ◽  
Acid Resistance ◽  
Basic Reason ◽  
Granulated Blast Furnace Slag ◽  
Furnace Slag

The effect of Fly ash (FA) and ground granulated blast-furnace slag (GGBS) on sulfuric acid resistance of concrete has been investigated in this study. Cement was replaced by FA with the incorporation amount from 20% to 50% or by GGBS from 35% to 65%. Results indicate that with an increase in fly ash replacement amount, the sulfuric acid resistance of concrete was improved. Sulfuric acid resistance of concrete with GGBS was improved only when the replacement amount of GGBS exceeds 50%. The basic reason for deterioration of concrete in sulfuric acid is the degradation of C-S-H gel in matrix. Increasing the content of SiO2 in cement paste can improve the acid resistance of concrete.

scholarly journals Effect of Supplementary Materials on the Autogenous Shrinkage of Cement Paste

Materials ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3367 ◽  
Author(s):  
Tianshi Lu ◽  
Zhenming Li ◽  
Hao Huang
Keyword(s):  
Blast Furnace ◽  
Fly Ash ◽  
Relative Humidity ◽  
Cement Paste ◽  
Blast Furnace Slag ◽  
High Performance Concrete ◽  
Autogenous Shrinkage ◽  
Chemical Shrinkage ◽  
Internal Relative Humidity ◽  
Furnace Slag

In recent years more and more attention has been given to autogenous shrinkage due to the increasing use of high-performance concrete, which always contains supplementary materials. With the addition of supplementary materials—e.g., fly ash and blast furnace slag—internal relative humidity, chemical shrinkage and mechanical properties of cement paste will be affected. These properties significantly influence the autogenous shrinkage of cement paste. In this study, three supplementary materials—i.e., silica fume, fly ash and blast furnace slag—are investigated. Measurements of final setting time, internal relative humidity, chemical shrinkage, compressive strength and autogenous deformation of the cement pastes with and without supplementary materials are presented. Two water-binder ratios, 0.3 and 0.4, are considered. The effects of different supplementary materials on autogenous shrinkage of cement paste are discussed.

scholarly journals Effect of Mineral Admixtures on the Performance of Low-Quality Recycled Aggregate Concrete

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 596
Author(s):  
Yasuhiro Dosho
Keyword(s):  
Blast Furnace ◽  
Fly Ash ◽  
Blast Furnace Slag ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Mineral Admixtures ◽  
Structural Concrete ◽  
Aggregate Concrete ◽  
Granulated Blast Furnace Slag ◽  
Furnace Slag

To improve the application of low-quality aggregates in structural concrete, this study investigated the effect of multi-purpose mineral admixtures, such as fly ash and ground granulated blast-furnace slag, on the performance of concrete. Accordingly, the primary performance of low-quality recycled aggregate concrete could be improved by varying the replacement ratio of the recycled aggregate and using appropriate mineral admixtures such as fly ash and ground granulated blast-furnace slag. The results show the potential for the use of low-quality aggregate in structural concrete.

scholarly journals Studies on strength behaviour of green self cured concrete with ecosand with impact of fly ash and ground granulated blast furnace slag

2021 ◽  
Vol 1091 (1) ◽  
pp. 012068
Author(s):  
C Vivek Kumar ◽  
K Vamsi Krishna ◽  
B Suresh ◽  
S Venkatacharyulu
Keyword(s):  
Blast Furnace ◽  
Fly Ash ◽  
Blast Furnace Slag ◽  
Granulated Blast Furnace Slag ◽  
Furnace Slag

Solidification/Stabilization of Dyeing Sludge Treated by Fenton Reagent Using Blast Furnace Slag and Fly Ash

2001 ◽  
Vol 4 (3) ◽  
pp. 84-88
Author(s):  
Sookoo Lee ◽  
Sebum Kim
Keyword(s):  
Blast Furnace ◽  
Fly Ash ◽  
Blast Furnace Slag ◽  
Fenton Reagent ◽  
Furnace Slag

Effects of Fly Ash and Granular Blast-Furnace Slag on Development Rate of Strength of Concrete

2014 ◽  
Vol 629-630 ◽  
pp. 371-375
Author(s):  
Ji Wei Cai ◽  
Si Jia Yan ◽  
Gong Lei Wei ◽  
Lu Wang ◽  
Jin Jin Zhou
Keyword(s):  
Blast Furnace ◽  
Fly Ash ◽  
Blast Furnace Slag ◽  
Development Rate ◽  
Mineral Admixture ◽  
Mineral Admixtures ◽  
Conventional Concrete ◽  
Enhancing Effect ◽  
Substitution Content ◽  
Furnace Slag

Fly ash (FA) and granular blast-furnace slag (GBFS) are usual mineral admixtures to conventional concrete, and their contents substituted for Portland cement definitely affect development rate of strength of concrete. C30 and C60 concrete samples with FA and/or GBFS were prepared to study the influence of substitution content of the mineral admixtures on 3 d, 7 d and 28 d strength. The results reveal that the development rate of strength in period from 3 d to 7 d gets slow with increasing content of mineral admixtures except for concrete with only GBFS less than 20%. In the case of substituting FA as the only mineral admixture for part of cement, the development rate of strength of C30 concrete in period from 7 d to 28 d keeps roughly constant even that of C60 concrete increases. When substituting mineral admixtures in the presence of GBFS for cement within experimental range, the development rate of strength in period from 7 d to 28 d gets fast with increasing substitution content. The enhancing effect of combining FA and GBFS occurs in period from 7 d to 28 d for both C30 and C60 concretes (FA+GBFS≤40%), even occurs in period from 3 d to 7 d for C60 concrete. Based on 7 d strength and the development rate, 28 d strength of concrete can be predicted accurately.

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