scholarly journals Mechanical properties of geomaterials made of steelmaking slag mixed with fibrous wood chips or chemical fibers

2021 ◽  
Vol 9 (6) ◽  
pp. 249-254
Author(s):  
Akihiro Oshino ◽  
Yoshiaki Kikuchi ◽  
Shohei Noda ◽  
Tomotaka Yoshikawa ◽  
Taiki Sugihara ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Wood Chips ◽  
Steelmaking Slag

Effect of Hardening Accelerators and other Chemical Admixtures on the Properties of a Quick-Setting Mixture

2018 ◽  
Vol 276 ◽  
pp. 116-121 ◽  
Author(s):  
Alsu Khamatova ◽  
Grigory Ivanovich Yakovlev ◽  
Vadim Khozin ◽  
Grigory Nikolaevich Pervushin
Keyword(s):  
Mechanical Properties ◽  
Setting Time ◽  
Physicomechanical Properties ◽  
Electric Steelmaking ◽  
Steelmaking Slag ◽  
Strength Gain ◽  
Short Term ◽  
Fine Grained ◽  
Chemical Admixtures ◽  
Gypsum Content

The physicochemical and physicomechanical properties of quick-setting compositions based on fine-grained electric steelmaking slag (ESS) produced by Izhstal PJSC, Russia, have been examined. The study also focuses on the processes of interaction of the components of the compositions based on ESS in combination with hardening accelerators (Li2CO3, K2SO4) and plasticizing additives (SP-1, Melflux 2651F). It has been found that mechanoactivation of the composition improves the hydration in comparison with chemical admixtures. This can be proved by the obtained results of the setting and testing timing of the mechanical properties of the mixture. Plasticizers being added, the setting time increases at the average by 2.3 times, and accelerators being added, by 2 times compared with the mechanically activated composition. The influence of mechanoactivation on the strength of the compositions has been described. In comparison with the plasticized composition, the strength increases by 10%, while using accelerators – by 30%. Thus, the most effective way of producing a dry mixture with the properties of quick setting and hardening is a short-term mixed grinding of all its components, which makes it possible to exclude accelerating chemical admixtures and plasticizing additives in the mixture. Also, grinding positively affects the strength gain of quick-setting compositions while reducing the gypsum content to 5%.

Effect of Co-Doped Steelmaking Slag and Fly Ash on Performance of Permeable Concrete

2014 ◽  
Vol 941-944 ◽  
pp. 751-755
Author(s):  
Zi Cheng Li ◽  
Ai Ju Zhang ◽  
Min Juan Zhou ◽  
Shu Heng Qiu
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Fly Ash ◽  
Permeability Coefficient ◽  
Concrete Specimen ◽  
Steelmaking Slag ◽  
High Permeability ◽  
Co Doped ◽  
Concrete Interface

The effect of steelmaking slag and fly ash as multi additives on permeability and mechanical properties of permeable concrete was investigated. The results show that multi binder with fly ash, steelmaking slag and cement has a significant impact on the permeability and compressive strength of permeable concrete specimen. When the co-doped admixture is added with fly ash (15 wt.% ) and steelmaking slag (10 wt.%), good mechanical properties and high permeability coefficient were obtained. Fly ash and steelmaking slag has a micro-aggregate filling effect on the concrete interface.

scholarly journals Effects of solidification strength on the shear properties of materials mixed wood chips with converter steelmaking slag

2020 ◽  
Vol 8 (2) ◽  
pp. 17-22
Author(s):  
Tomotaka Yoshikawa ◽  
Yoshiaki Kikuchi ◽  
Shohei Noda ◽  
Yuka Kakihara ◽  
Akihiro Oshino ◽  
...  
Keyword(s):  
Wood Chips ◽  
Steelmaking Slag ◽  
Converter Steelmaking ◽  
Shear Properties ◽  
Properties Of Materials

scholarly journals Mechanical properties of steel slag replaced mineral aggregate for road base/sub-base application based Vietnam and Japan standard

2021 ◽  
Author(s):  
Dang Tung Dang ◽  
Manh Tuan Nguyen ◽  
Tan Phong Nguyen ◽  
Tomoo Isawa ◽  
Yasutaka Ta ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Steel Slag ◽  
Road Construction ◽  
Test Method ◽  
Base Layer ◽  
Steelmaking Slag ◽  
Mineral Aggregate ◽  
Iron And Steel ◽  
Volume Stability ◽  
Road Pavement

AbstractSteelmaking slag is one of the most massive industrial by-products generated during steelmaking processes. This paper presents the current steelmaking slag production status and its potential to use as mineral aggregates in base/sub-base layer of road pavement. The mechanical properties of steelmaking slag were confirmed by the test method specified in Vietnam specification. The volume stability test of the slag was conducted based on JIS A 5015-2018 (Japanese Industrial Standard: Iron and steel slag for road construction). From the results, it was confirmed that steelmaking slag can satisfy all the mechanical requirements specified in Vietnam specification and the requirements regarding stability specified in JIS A 5015-2018. In addition, it was found that the elastic modulus of steelmaking slag applied as a base or sub-base layer in pavement was higher than that of the conventional graded aggregate made from mineral aggregate. Therefore, the thickness of pavement can be reduced by using steelmaking slag, and the construction cost can be lower.

Compression Strength of Wood Chips Mixed with Steelmaking Slag

2021 ◽  
pp. 1-11
Author(s):  
Tomotaka Yoshikawa ◽  
Yoshiaki Kikuchi ◽  
Shohei Noda ◽  
Yuka Kakihara ◽  
Akihiro Oshino
Keyword(s):  
Compression Strength ◽  
Wood Chips ◽  
Steelmaking Slag

Utilization of water reed in production of various insulation panels

2013 ◽  
Vol 20 (4) ◽  
pp. 371-377
Author(s):  
Arif Karademir ◽  
Ferhat Yetis ◽  
Sami Imamoglu ◽  
Hulya Varlıbas
Keyword(s):  
Mechanical Properties ◽  
Mechanical Strength ◽  
Bending Strength ◽  
Wood Chips ◽  
Thickness Swelling ◽  
Enzymatic Methods

AbstractSome panels and particleboards were made from reed mats and blends of reed-wood chips to be used inside buildings for sound and heat insulations. It was seen that the outer layers of the reed body (spike) was almost water resistant and exceptionally resistant to the penetration of common adhesives. Therefore, the panels from stitched reed mats exhibited very poor mechanical strength. The sound transmissions of such panels (1–3 km/s) made with various combinations, however, were recorded to be excellent compared with that of particleboards made of wood (17 km/s). Blends of reed chips (2 cm) and wood chips, however, gave particleboards with better mechanical properties (5–17 MPa) than that of panels made from reed mats (2 MPa). An increasing amount of reed chips in tested particleboards was recorded to be improving both sound and heat insulations from 17 to 6 km/s and from 0.34 to 0.27 W/mK, respectively. The bending strength of samples, however, was reduced from 26 to 5 MPa. Thickness swelling was also noted to increase from 18% to 85% due to reed chips addition. It was concluded that the outer layers of water reeds should be modified via chemical and/or enzymatic methods to increase the interfacial bounds between adhesives.

scholarly journals Effect of amorphous silica content in clay on mechanical properties of the mixture of clay and converter steelmaking slag

2020 ◽  
Vol 8 (2) ◽  
pp. 1-6
Author(s):  
Yuka Kakihara ◽  
Yoshiaki Kikuchi ◽  
Shohei Noda ◽  
Takamune Yamaguchi ◽  
Risa Tomimatsu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Amorphous Silica ◽  
Silica Content ◽  
Steelmaking Slag ◽  
Converter Steelmaking

scholarly journals Long Term Compression Strength of Mortars Produced Using Coarse Steel Slag as Aggregate

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Erika Furlani ◽  
Stefano Maschio
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Compression Strength ◽  
Steel Slag ◽  
Alkali Silica Reaction ◽  
Steelmaking Slag ◽  
Cement Ratio ◽  
Water Cement Ratio ◽  
Long Time

The paper reports on some experimental results obtained from the production of mortars prepared using a commercial cement, coarse steelmaking slag, superplasticizer, and water. The behaviour of this reference composition was compared to that of some others containing further additives in order to investigate materials compressive strength after long time ageing. It has been demonstrated that an optimized water/cement ratio coupled with slag particles of size lower than 2.5 mm and proper protocol of preparation leads to the production of materials with good mechanical properties after 28, 90, and 180 days of ageing. The resulting materials therefore appeared as good candidates for civil engineering applications. However, the present research also demonstrates that the mortar samples of all of the compositions prepared suffer from decay and compressive strength decrease after long time ageing in water. In the present paper the results are explained taking account of materials residual porosity and alkali silica reaction which occurs in the samples.

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