Study on the Load-Bearing Microcellular Foam Concrete and the New Process of its Product

2014 ◽  
Vol 584-586 ◽  
pp. 1470-1476
Author(s):  
Hong Zhen Wang
Keyword(s):  
Raw Materials ◽  
Lightweight Aggregate ◽  
High Strength ◽  
Microcellular Foam ◽  
Concrete Material ◽  
Load Bearing ◽  
New Process ◽  
Building Load ◽  
Best Fit ◽  
Furnace Slag

In this paper, through the test to determine the blast furnace slag lightweight aggregate, cement as cementitious material, with various additives for the performance adjustment material, high strength lightweight material made of best fit of porous concrete material ratio, studied influence of raw materials on the performance of each group and production technology of its building load-bearing products .

Prodution of Concrete Aggregates with High Strength by Using the Wastes

2010 ◽  
Vol 163-167 ◽  
pp. 1651-1654 ◽  
Author(s):  
Jin Bang Wang ◽  
Zong Hui Zhou
Keyword(s):  
Water Absorption ◽  
Apparent Density ◽  
Raw Materials ◽  
Steel Slag ◽  
High Strength ◽  
National Standards ◽  
Concrete Aggregates ◽  
Natural Aggregates ◽  
Different Content ◽  
Furnace Slag

Several series of concrete aggregates with different content of steel slag, blast furnace slag, coal gangue and fly ash were prepared. The reasonable ratio of raw materials and process parameters to prepare the aggregates were determined by measuring the water absorption, crush indicators and apparent density of the aggregates. The mineral composition and morphology of the aggregates were analyzed by XRD, SEM and EDS. The results showed the aggregate with about 30% steel slag, 50% slag, 20% gangue, and calcined at 1300°C for 90 minutes had the best performance. The water absorption of the aggregate is about 1.55% which is lower than that of the natural aggregates (about 2.2% on average). Both the crushing index (about 11.39%) and the apparent density (2672 kg/m3) of the aggregate meet the requirements of national standards.

Experimental Study of Porous Concrete Material Thermal Insulation Material Lightweight Polystyrene Particles

2013 ◽  
Vol 357-360 ◽  
pp. 1053-1061
Author(s):  
Hong Zhen Wang ◽  
Dong Geng Fu
Keyword(s):  
Thermal Insulation ◽  
Raw Materials ◽  
Lightweight Aggregate ◽  
Cementitious Material ◽  
Insulation Material ◽  
Concrete Material ◽  
Porous Concrete ◽  
Technology Product ◽  
Heat Preservation ◽  
Cellular Concrete

In this paper, through the test to determine the polystyrene granule as aggregate, the cement foaming slurry as cementitious material, with various additives for the performance adjustment material, optimum matching of polystyrene particles made of lightweight aggregate cellular concrete heat preservation material ratio, was the influence of raw materials on the performance and the thermal insulation of building production technology product form and key.

PARTICULAR QUALITIES OF CONSTRUCTION AND TECHNICAL EXPERTISE OF STRUCTURES AGRICULTURAL WAREHOUSE OF MINERAL FERTILIZERS

2020 ◽  
Author(s):  
I.O. Egorochkina ◽  
◽  
I.A. Serebryanaya ◽  
S. A. Jamaldinov ◽  
F.A. Bataeva ◽  
...  
Keyword(s):  
Functional State ◽  
Mineral Fertilizers ◽  
Technical Expertise ◽  
Technical Documentation ◽  
Load Bearing ◽  
Building Load

The article describes the features of construction and technical expertise of structures of agricultural warehouse of mineral fertilizers. A draft program for visual and detailed instrumental inspection of building load-bearing structures has been developed. In accordance with the recommendations of the regulatory and technical documentation, measures have been developed to repair and restore the functional state of damaged structures.

STRENX 700

Alloy Digest ◽  
2017 ◽  
Vol 66 (2) ◽  
Keyword(s):  
Fracture Toughness ◽  
Yield Strength ◽  
Physical Properties ◽  
Structural Steel ◽  
Tensile Properties ◽  
High Strength ◽  
Load Bearing ◽  
Minimum Yield

Abstract Strenx 700 is a high-strength structural steel with a minimum yield strength of 650–700 MPa (94–102 ksi) depending on thickness. Strenx 700 meets the requirements of EN 10 025-6 for the S690 grade and thicknesses. Typical applications include demanding load-bearing structures. This datasheet provides information on composition, physical properties, and tensile properties as well as fracture toughness. It also includes information on surface qualities as well as forming, machining, and joining. Filing Code: SA-779. Producer or source: SSAB Swedish Steel Inc..

Bamboo Waste-based Bio-composite Substance: An application for Low-cost Construction Materials

2020 ◽  
Vol 4 (1) ◽  
pp. 41-48
Author(s):  
Teodoro Astorga Amatosa ◽  
Michael E. Loretero
Keyword(s):  
Composite Materials ◽  
Sea Water ◽  
Raw Materials ◽  
Low Cost ◽  
Construction Materials ◽  
Single Layer ◽  
High Strength ◽  
Green Technology ◽  
Experimental Medium ◽  
Natural Treatment

Bamboo is a lightweight and high-strength raw materials that encouraged researchers to investigate and explore, especially in the field of biocomposite and declared as one of the green-technology on the environment as fully accountable as eco-products. This research was to assess the technical feasibility of making single-layer experimental Medium-Density Particleboard panels from the bamboo waste of a three-year-old (Dendrocalamus asper). Waste materials were performed to produce composite materials using epoxy resin (C21H25C105) from a natural treatment by soaking with an average of pH 7.6 level of sea-water. Three different types of MDP produced, i.e., bamboo waste strip MDP (SMDP), bamboo waste chips MDP (CMDP) and bamboo waste mixed strip-chips MDP (MMDP) by following the same process. The experimental panels tested for their physical-mechanical properties according to the procedures defined by ASTM D1037-12. Conclusively, even the present study shows properties of MDP with higher and comparable to other composite materials; further research must be given better attention as potential substitute to be used as hardwood materials, especially in the production, design, and construction usage.

scholarly journals Design of Low-Cost and High-Strength Titanium Alloys Using Pseudo-Spinodal Mechanism through Diffusion Couple Technology and CALPHAD

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2910
Author(s):  
Chaoyi Ding ◽  
Chun Liu ◽  
Ligang Zhang ◽  
Di Wu ◽  
Libin Liu
Keyword(s):  
Diffusion Couple ◽  
Titanium Alloys ◽  
High Throughput ◽  
Volume Fraction ◽  
Raw Materials ◽  
Low Cost ◽  
High Strength ◽  
High Yield ◽  
Α Phase ◽  
Cr System

The high cost of development and raw materials have been obstacles to the widespread use of titanium alloys. In the present study, the high-throughput experimental method of diffusion couple combined with CALPHAD calculation was used to design and prepare the low-cost and high-strength Ti-Al-Cr system titanium alloy. The results showed that ultra-fine α phase was obtained in Ti-6Al-10.9Cr alloy designed through the pseudo-spinodal mechanism, and it has a high yield strength of 1437 ± 7 MPa. Furthermore, application of the 3D strength model of Ti-6Al-xCr alloy showed that the strength of the alloy depended on the volume fraction and thickness of the α phase. The large number of α/β interfaces produced by ultra-fine α phase greatly improved the strength of the alloy but limited its ductility. Thus, we have demonstrated that the pseudo-spinodal mechanism combined with high-throughput diffusion couple technology and CALPHAD was an efficient method to design low-cost and high-strength titanium alloys.

C80 Early Strength Micro Expansion of Steel Tube Reinforced Concrete Research

2015 ◽  
Vol 1119 ◽  
pp. 752-755
Author(s):  
Chang Zheng Sun ◽  
Zheng Wang
Keyword(s):  
High Performance ◽  
Raw Materials ◽  
Influence Factors ◽  
High Strength ◽  
Steel Tube ◽  
Strength Analysis ◽  
Self Compacting Concrete ◽  
Mix Proportion ◽  
Early Strength ◽  
Working Performance

Optimization of mix proportion parameter ，Using ordinary raw materials makes a C80 high performance self-compacting concrete;By joining a homemade perceptual expansion agent, significantly improve the early strength of concrete and effective to solve the high strength of self-compacting concrete caused by gelled material consumption big contraction;Further study on the working performance of high-strength self-compacting concrete, age strength, analysis the influence factors of concrete are discussed.

High-Strength, Metalized Fibers for Conformal Load Bearing Antenna Applications

2011 ◽  
Vol 59 (9) ◽  
pp. 3458-3462 ◽  
Author(s):  
Steven E. Morris ◽  
Yakup Bayram ◽  
Lanlin Zhang ◽  
Zheyu Wang ◽  
Max Shtein ◽  
...  
Keyword(s):  
High Strength ◽  
Load Bearing
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