scholarly journals Use of ladle furnace slag as supplementary cementitious material before and after modification by rapid air cooling: A comparative study of influence on the properties of blended cement paste

2022 ◽  
Vol 314 ◽  
pp. 125434
Author(s):  
Kuizhen Fang ◽  
Jihui Zhao ◽  
Dongmin Wang ◽  
Huangqi Wang ◽  
Ziliang Dong
Keyword(s):  
Comparative Study ◽  
Cement Paste ◽  
Blended Cement ◽  
Cementitious Material ◽  
Air Cooling ◽  
Ladle Furnace ◽  
Supplementary Cementitious Material ◽  
Before And After ◽  
Blended Cement Paste ◽  
Furnace Slag

scholarly journals Evaluation of Properties and Microstructure of Cement Paste Blended with Metakaolin Subjected to High Temperatures

Materials ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 941 ◽  
Author(s):  
Wenqiang Wang ◽  
Xinhao Liu ◽  
Liang Guo ◽  
Ping Duan
Keyword(s):  
Compressive Strength ◽  
Cement Paste ◽  
Elevated Temperatures ◽  
Blended Cement ◽  
Thermal Exposure ◽  
Polynomial Equation ◽  
Cement Pastes ◽  
Maximum Value ◽  
Before And After ◽  
Blended Cement Paste

The effects of 10% metakaolin addition on compressive strength, water absorption, shrinkage and microstructure evolution of cement paste after elevated temperatures exposure from room temperature to 800 °C were evaluated. The experimental results show that compressive strength increases at 200 °C and 400 °C compared with that obtained at ambient temperature. Up to 800 °C, compressive strength decreases rapidly. The addition of 10% metakaolin leads to the enhancement of compressive strength regardless of exposure temperatures. After thermal exposure at 400 °C, compressive strength reaches the maximum value. Thermal exposure degrades pore structure. A polynomial equation was used to indicate the shrinkage of cement paste or metakaolin-blended cement paste with testing days. Mechanical properties, permeability resistance, and shrinkage in cement pastes are closely related to the microstructure development. 10% metakaolin addition presents better thermal resistance, lower shrinkage and denser microstructure compared with pure cement paste before and after thermal exposure.

Study on Properties of Fresh and Hardened Slag Cement Paste

2010 ◽  
Vol 113-116 ◽  
pp. 2283-2286
Author(s):  
Ming Zhang ◽  
Han Lu ◽  
Feng Xing ◽  
Shu Ping Wang
Keyword(s):  
Blast Furnace ◽  
Cement Paste ◽  
Blast Furnace Slag ◽  
Blended Cement ◽  
Hydration Products ◽  
Micro Structure ◽  
Hydration Properties ◽  
Gradual Loss ◽  
Blended Cement Paste ◽  
Furnace Slag

The paper studied effect of blast-furnace slag on rheology and hydration properties of blended cement paste. Rheology of blended cement paste with polycarboxylic series (PCS) and sulphamate series (SMS) superplasticizer is tested, appraised effect degree of the dosage and fineness of slag in blended cement by saturation dosage of superplasticizer, fluidity and gradual loss of fluidity. For hardened paste, the study tested development of strength and hydration products, activation effects of gypsum and sodium sulfate, analyzed macro mechanical behavior and micro structure of blend cement made from slag.

Effect of incorporating iron‐filing waste on the properties of silica fume blended cement paste

2020 ◽  
Author(s):  
Moruf O. Yusuf ◽  
Sami I. Shamsah ◽  
Khaled A. Al‐Sodani ◽  
Salihu Lukman
Keyword(s):  
Silica Fume ◽  
Cement Paste ◽  
Blended Cement ◽  
Iron Filing ◽  
Blended Cement Paste

New scientific evidence of the effect of high temperatures and long curing times on MK-blended cement paste mineralogy

2022 ◽  
Vol 152 ◽  
pp. 106657
Author(s):  
M. Frías ◽  
S. Martínez-Ramírez ◽  
R. Vigil de la Villa ◽  
R. García-Giménez ◽  
M.I. Sánchez de Rojas
Keyword(s):  
High Temperatures ◽  
Cement Paste ◽  
Scientific Evidence ◽  
Blended Cement ◽  
Blended Cement Paste
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