Preparation of Unburned Brick from the High Titania Blast Furnace Slag and Styrene-Acrylate Emulsion

2012 ◽  
Vol 512-515 ◽  
pp. 2982-2985
Author(s):  
Xiang Wen Kong ◽  
Dan Wang
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Process Conditions ◽  
Curing Time ◽  
Optimal Process ◽  
Mass Fractions ◽  
Acrylate Emulsion ◽  
Furnace Slag ◽  
Better Than

The unburned brick was prepared by using the high titania blast furnace slag as an aggregate, styrene-acrylate emulsion as cementing materials and two admixtures. Factors such as amounts of admixtures and styrene-acrylate emulsion, forming pressure and curing time on the properties of the products were studied. The optimal process conditions for preparing the brick sample were as follows: mass fractions of the slag, styrene-acrylate emulsion, admixture 1, admixture 2 and water were respectively 70%, 8%, 8%, 10% and 4%, forming pressure 30 MPa, curing time 7 d. The properties of the brick sample prepared under these process conditions are better than that of MU 25 in GB / T 2542 - 2003.

Preparation of a New Unburned Brick from Ti-Bearing Blast Furnace Slag and PVA Modified by Epikote

2013 ◽  
Vol 785-786 ◽  
pp. 328-331 ◽  
Author(s):  
Xiang Wen Kong ◽  
Li Li Ren ◽  
Xia Ai ◽  
Jing Zhang
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Low Cost ◽  
Mixing Time ◽  
Cementitious Materials ◽  
Test Method ◽  
Process Conditions ◽  
Curing Time ◽  
Orthogonal Test Method ◽  
Furnace Slag

A new unburned brick was prepared from the Ti-bearing blast furnace slag as an aggregate and PVA modified by epikote as cementitious materials. The effects of modified PVA and auxiliaries on compressive strength of unburned brick were studied by the orthogonal test method. The results show that samples have better properties and low cost when the samples have a composition of slag dosage 72 %, modified PVA dosage 6%, auxiliary 1 dosage 6%, auxiliary 2 dosage 10%, water 6% and the process conditions of preparing the brick sample were mixing time 1 h, forming time 10 min, forming pressure 40 MPa, and curing time 7 d. The study reveals that the samples properties can meet the standard requirements of excellent grade products (MU20) in GB11945-1999.

scholarly journals THE INFLUENCE OF PROCESS CONDITIONS ON GROUND COAL SLAG AND BLAST FURNACE SLAG BASED GEOPOLYMER PROPERTIES

2020 ◽  
Vol 35 (4) ◽  
pp. 15-20
Author(s):  
Quyen V. Trinh ◽  
Gábor Mucsi ◽  
Thai V. Dang ◽  
Ly P. Le ◽  
Van H. Bui ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Particle Density ◽  
Curing Temperature ◽  
Process Conditions ◽  
Ph Values ◽  
Specimen Density ◽  
Coal Slag ◽  
Furnace Slag

In this study, the material characterization of Vietnamese ground coal slag and ground granulated blast furnace slag (GGBFS), such as particle size distribution, chemical composition, bulk density and particle density are shown. The geopolymer specimens were prepared by mixing an 80 m/m% mass of solid materials (ground coal slag and GGBFS in a different ratio) with 20 m/m % of a 10M NaOH alkaline activator. A systematic experimental series was carried out in order to optimize the preparation process. In that series, the heat curing temperature was 60°C for 6 hours, and then selected specimens were heat treated at a high temperature (1000 °C) for 1 hour. After 7 days of ageing, the physical properties of the geopolymer (compressive strength, specimen density) were measured. Also, after 180 days of ageing, the pH values of water in the geopolymer leaching preparation were determined. The results show that the geopolymer can be used for refractory applications due to its good heat resistance properties. However, geopolymers that were heated at 1000 °C had lower compressive strength, specimen density and pH values of water containing the geopolymer than those that were cured at 60 °C.

scholarly journals Influence of Curing Time on the Drying Shrinkage of Concretes with Different Binders and Water-to-Binder Ratios

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Jun Yang ◽  
Qiang Wang ◽  
Yuqi Zhou
Keyword(s):  
Blast Furnace ◽  
Fly Ash ◽  
Blast Furnace Slag ◽  
Drying Shrinkage ◽  
Mineral Admixture ◽  
Curing Time ◽  
Cement Concrete ◽  
Fly Ash Concrete ◽  
Granulated Blast Furnace Slag ◽  
Furnace Slag

Plain cement concrete, ground granulated blast furnace slag (GGBS) concrete, and fly ash concrete were designed. Three wet curing periods were employed, which were 2, 5, and 8 days. The drying shrinkage values of the concretes were measured within 1 year after wet curing. The results show that the increasing rate of the drying shrinkage of concrete containing a mineral admixture at late age is higher than that of plain cement concrete regardless of the wet curing time. With the reduction of wet curing time, the increment of total drying shrinkage of concrete decreases with the decrease of the W/B ratio. The negative effects on the drying shrinkage of fly ash concrete due to the reduction of the wet curing time are much more obvious than those of GGBS concrete and plain cement concrete. Superfine ground granulated blast furnace slag (SGGBS) can reduce the drying shrinkage of GGBS concrete and fly ash concrete when the wet curing time is insufficient.

Effect of curing time on granulated blast-furnace slag cement mortars carbonation

2018 ◽  
Vol 90 ◽  
pp. 257-265 ◽  
Author(s):  
Miguel Ángel Sanjuán ◽  
Esteban Estévez ◽  
Cristina Argiz ◽  
Daniel del Barrio
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Curing Time ◽  
Slag Cement ◽  
Granulated Blast Furnace Slag ◽  
Cement Mortars ◽  
Furnace Slag

Influence of Process Conditions on the Structure and Hydraulic Activity of Air-Cooling Blast Furnace Slag

2015 ◽  
Vol 814 ◽  
pp. 476-482
Author(s):  
Hui Wang ◽  
Su Ping Cui ◽  
Ya Li Wang
Keyword(s):  
Blast Furnace ◽  
Cooling Rate ◽  
Heating Rate ◽  
Blast Furnace Slag ◽  
Glass Content ◽  
Process Conditions ◽  
Granulated Blast Furnace Slag ◽  
Discharge Temperature ◽  
Heat Preservation ◽  
Furnace Slag

Using the industrial limestone, fly ash and pure chemical reagents as raw materials, the blast furnace slag was prepared by the fast air-cooled method. Using orthogonal experiment method, the influence of process conditions such as heating rate, heat preservation time of the blast furnace slag in hearth, discharge temperature of slag and cooling speed on the glass content and hydraulic activity of blast furnace slag were studied, the main influence factors and the optimal process conditions of blast furnace slag were determined. The results showed that the discharge temperature of slag was the key factor influencing on the glass content of granulated blast furnace slag. The impact degree of all process conditions on the glass content of granulated blast furnace slag accord with the following sequence: discharge temperature of slag > heat preservation time > heating rate > cooling rate. And heat preservation time and cooling rate were the key factors influencing 28 days activity index of blast furnace slag, the impact sequence of all process conditions on the 28 days activity index of granulated blast furnace slag was as follows: heat preservation time > cooling rate > discharge temperature of slag > heating rate. This study also optimized the process conditions of granulated blast furnace slag for different indicators.

Effect of Mineral Mixture of Steel Slag and Blast Furnace Slag on the Properties of Cement

2011 ◽  
Vol 299-300 ◽  
pp. 206-210 ◽  
Author(s):  
Zuo Shun Zhang ◽  
Fang Lian ◽  
Hong Qiang Liao ◽  
Li Hua Xu ◽  
Xiang Yang Li ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Cement Paste ◽  
Powder Mixture ◽  
Blast Furnace Slag ◽  
Setting Time ◽  
Steel Slag ◽  
Mineral Mixture ◽  
Measured Water ◽  
Furnace Slag ◽  
Better Than

The influence of powder mixture of steel slag and blast furnace slag on the physical properties of cement paste was investigated. Besides, the effect of chemical activator on powder mixture was also studied. For these purposes, the powder mixtures with different ratio of steel slag to blast furnace slag were blended with Portland cement. The water requirement of normal consistency, setting time, and soundness of cement were measured. Water glass and anhydrite were used to stimulate the activity of powder mixture. And the microstructure of hydration products was observed using scanning electron microscope (SEM). It was concluded that powder mixture could improve the fluidity of cement paste and prolong setting time. The effect of compound activators was better than a single one. Under the action of activators, the activity of powder mixture reached to the level of S95, when the proportions of steel slag were from 10% to 30%.

Study on the Shrinkage of a Full-Scale Wall Made with Blast Furnace Slag Fine Aggregates

CONCREEP 10 ◽  
2015 ◽  
Author(s):  
Tomiyuki Kaneko ◽  
Keiichi Imamoto ◽  
Chizuru Kiyohara ◽  
Akio Tanaka ◽  
Ayuko Ishikawa
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Full Scale ◽  
Fine Aggregates ◽  
Furnace Slag

Influence of Melt Compounding on Blast Furnace Slag Filled PP Compounds: A Comparative Study

2017 ◽  
Vol 32 (4) ◽  
pp. 446-454
Author(s):  
A. Mostafa ◽  
G. Pacher ◽  
T. Lucyshyn ◽  
C. Holzer ◽  
E. Krischey ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Comparative Study ◽  
Blast Furnace Slag ◽  
Melt Compounding ◽  
Furnace Slag
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