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Online since: August 2014
Authors: Shao Jun Zhang
The construction quality control measures of reinforced concrete cover research
Zhang Shaojun
chongqing water resources and electric engineering college, Chongqing, 402160, China.
Control of reinforcement engineering belong to take cover engineering, it is the key point of concrete structure engineering construction quality control.
Construction units and supervision units should earnestly the concealment acceptance of reinforced engineering. 7.
Each working procedure when completed, is first and foremost GongBan self-checking, signature, after the qualified report to the project department professional engineers, by professional engineers can be reported to the supervision engineer acceptance sampling are eligible. 9.1 strictly carry out the first engineering approval system According to the serial number of unit division, the refinement, the procedure to each individual component before construction should be reported to the construction plan of the first article, after approval of the implementation in the construction of the first article, after the completion of the project of the first article should be summarized, to improve the process, attention should be paid to the issues discussed, such as disclosure, clear, to ensure the subsequent construction engineering quality is not lower than the first. 9.2 to strengthen management, to formulate the corresponding rewards and punishment measures The project intends to set
Civil engineering and construction of academic library (volume 12) [C], 2009
Control of reinforcement engineering belong to take cover engineering, it is the key point of concrete structure engineering construction quality control.
Construction units and supervision units should earnestly the concealment acceptance of reinforced engineering. 7.
Each working procedure when completed, is first and foremost GongBan self-checking, signature, after the qualified report to the project department professional engineers, by professional engineers can be reported to the supervision engineer acceptance sampling are eligible. 9.1 strictly carry out the first engineering approval system According to the serial number of unit division, the refinement, the procedure to each individual component before construction should be reported to the construction plan of the first article, after approval of the implementation in the construction of the first article, after the completion of the project of the first article should be summarized, to improve the process, attention should be paid to the issues discussed, such as disclosure, clear, to ensure the subsequent construction engineering quality is not lower than the first. 9.2 to strengthen management, to formulate the corresponding rewards and punishment measures The project intends to set
Civil engineering and construction of academic library (volume 12) [C], 2009
Online since: October 2010
Authors: Chong Chen Wang, Yan Xia Song, Yuan Lan Wang
Two Nickel-bipyridinedicarboxylate Organic-Inorganic Hybrid Materials: Hydrothermal Synthesis, Crystal Structure and Thermal Properties
Yanxia Song 1,a, Chongchen Wang 2,b, Yuanlan Wang1,c
1School of Science, Central South University of Forestry and Technology, Changsha 410004, China
2School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
asongyanxia12345678@126.com, bchongchenwang@126.com, ccsfuyl@163.com
Keywords: Bipyridine dicarboxylic acid, Hydrothermal reaction, Crystal structure, Thermal stable
Abstract: Two two-dimensional and three-dimensional coordination-polymer, [Ni(2,2′,5,5′-bpdc) (H2O)]·H2O (1) and[Ni(2,2′,6,6′-bpdc)2]·4H2O (2) were obtained via hydrothermal reaction between NiCl2·6H2O and 2,2′-bipyridine-5,5′-dicarboxylic acid (2,2′,5,5′-bpdc), 2,2′-bipyridine-6,6′-dicarboxylic acid (2,2′,6,6′-bpdc) respectively, and were characterized by infrared spectra, thermogravimetric analysis and single
PHR201008372) and the Research Fund of Beijing University of Civil Engineering and Architecture (Grant No. 100902602).
PHR201008372) and the Research Fund of Beijing University of Civil Engineering and Architecture (Grant No. 100902602).
Online since: March 2014
Authors: Lilian Diasti, Jul Endawati
Wood Shavel Composites with Friendly Environment Based Binder
Jul Endawati1,a and Lilian Diasti2,b*
1,2)Civil Engineering Department, Politeknik Negeri Bandung, Indonesia
Email :a)julend03@yahoo.com; b)amr_dgreat@yahoo.com
Keywords : Fibre board, Natural fibre; Fly ash; Silica fume
Abstract.Wood fiber has long been known as fiber reinforcement for concrete .
Dept. of Mechanical Engineering, Univ. of Sheffield, England, U.K
Weinmann, and Freimann T (2011), Study of Fiber Cement Board Using CEM I-52.5, Master Thesis, Civil Engineering Department, Georg Simon Ohm University, Nurnberg
Dept. of Mechanical Engineering, Univ. of Sheffield, England, U.K
Weinmann, and Freimann T (2011), Study of Fiber Cement Board Using CEM I-52.5, Master Thesis, Civil Engineering Department, Georg Simon Ohm University, Nurnberg
Online since: April 2015
Authors: Rudolf Hela, Lenka Bodnárová
Development of High-Volume High Temperature Fly Ash Concrete
(HVFAC)
Rudolf Hela1, a* and Lenka Bodnarova1, b
1Brno University of Technology, Faculty of Civil Engineering, Institute of Technology of Building Materials and Components, Veveri 331/95, 60200 Brno, Czech Republic
a hela.r@fce.vutbr.cz, b bodnarova.l@fce.vutbr.cz
Keywords: High-Volume Fly Ash Concrete, HVFAC, Consistency of concrete, Strength of concrete at the age of 7 – 180 days, Development of temperature, High temperature
Abstract.
Sedlmajer, Development of thermal insulation plasters with utilization of by-products, in: 2nd International Conference on Waste Engineering Management, ICWEM 2010, 73 (2010) 288-296
The University of New Brunswick, Civil Engineering, New Brunswick, (2006)
Sedlmajer, Development of thermal insulation plasters with utilization of by-products, in: 2nd International Conference on Waste Engineering Management, ICWEM 2010, 73 (2010) 288-296
The University of New Brunswick, Civil Engineering, New Brunswick, (2006)
Online since: January 2013
Authors: Jian Wei Yue, Xiu Ying Meng
Experimental Research of Foaming Concrete Performance
with Different Blowing Agent
Jianwei Yue1,3,a , Xiuying Meng2
1.School of Civil engineering,He Nan University,kiafeng,China,475001
2.Zhengzhou water conservancy school, zhengzhou, China,450002
3.School of Civil engineering, Zhe Jiang University, Zhe Jiang, China, 310058
aYJWCHN@126.COM
Keywords: Foaming concrete, Blowing agent, Thermal conductivity, Compression strength
Abstract.
Research results are helpful for this new type of inorganic heat preservation material in the engineering.
Research results are helpful for this new type of inorganic heat preservation material in the engineering.
Online since: February 2013
Authors: Norbert Komar, Iwona Grabara
A wide range of fuel products include:
· energetic ashes,
· Fine coal blends,
· ash-mud mixture,
· Sludge granules,
The main recipients of Haldex are:
· The company for which the company Haldex is a provider of mining waste,
· Companies that receive products resulting from the processing of mining waste (or mixture of aggregate energy)
Within the 50 years of its existence, the Haldex company processed about 120 million tons of mining waste, recovered and produced:
· 19.3 million tons of coal,
· 7.4 million tons of rubble for the cement industry,
· 6.4 million tons of rubble for the engineering industry,
· 74.5 million tonnes of crushed stone used in backfills,
· 3.4 million m3 of lightweight aggregate,
In the further part of this article, the authors will present ways to use this material, which take into account all aspects of the concept of sustainable development.
Obtained from the processing of extractive waste, aggregates are used: · In civil engineering - the construction of embankments and hydraulic transport, earthmoving, and strengthen the exchange of land, construction of water reservoirs and embankments settlers · In the cement industry, · In the production of building ceramics, · The reclamation of degraded land, · To construct, and cover the bowl layered landfills · To backfill excavations, Aggregates can also be used to build into layers and layers of improved surface roads reinforcing heavy traffic load.
Thus is fulfilled the social aspect. 12% of the aggregate produced is used for civil engineering, which involves the economic aspect of the concept of sustainable development.
Obtained from the processing of extractive waste, aggregates are used: · In civil engineering - the construction of embankments and hydraulic transport, earthmoving, and strengthen the exchange of land, construction of water reservoirs and embankments settlers · In the cement industry, · In the production of building ceramics, · The reclamation of degraded land, · To construct, and cover the bowl layered landfills · To backfill excavations, Aggregates can also be used to build into layers and layers of improved surface roads reinforcing heavy traffic load.
Thus is fulfilled the social aspect. 12% of the aggregate produced is used for civil engineering, which involves the economic aspect of the concept of sustainable development.
Online since: December 2016
Authors: Stanislav Unčík, Valéria Gregorová
Characterization of Lightweight Concrete Produced from Plastics Waste - Polystyrene and EVA
Valeria Gregorova1, a * and Stanislav Uncik1, b
1Slovak University of Technology, Faculty of Civil Engineering, Radlinského 11, 810 05 Bratislava, Department of Material Engineering, Slovakia
avaleria.gregorova@stuba.sk, bstanislav.uncik@stuba.sk
Keywords: Lightweight Concrete, Waste, Plastic, Polystyrene, Ethylene Vinyl Acetate, EVA.
In civil engineering, secondary raw materials are mainly used in the production of composite materials such as concrete and mortar, as fillers (fly ash and ash from power plants and heating plants [1-3], ash and slag from the incineration of municipal waste, blast furnace and steel slag, waste molding sand from foundries, wastes wood processing, waste from the production of artificial stone and aggregates, waste from the extraction and treatment of mineral resources and coal waste from the recycling of building materials and building structures [4,5], waste paper, pulp, plastics etc.) or as adhesives and additives (ground blast furnace slag, gypsum from flue gas desulphurization and waste from chemical production, dust from cement and lime works, microsilica etc.) [6].
In civil engineering, secondary raw materials are mainly used in the production of composite materials such as concrete and mortar, as fillers (fly ash and ash from power plants and heating plants [1-3], ash and slag from the incineration of municipal waste, blast furnace and steel slag, waste molding sand from foundries, wastes wood processing, waste from the production of artificial stone and aggregates, waste from the extraction and treatment of mineral resources and coal waste from the recycling of building materials and building structures [4,5], waste paper, pulp, plastics etc.) or as adhesives and additives (ground blast furnace slag, gypsum from flue gas desulphurization and waste from chemical production, dust from cement and lime works, microsilica etc.) [6].
Online since: September 2013
Authors: Jana Kosíková, Lenka Mészárosová, Ámos Dufka
Lenka Mészárosová3,c,
(1,2,3) Brno University of Technology, Faculty of Civil Engineering, Veveří 95, 602 00 Brno.
The development of these materials at the Faculty of Civil Engineering in Brno is a continuous and henceforward ongoing process.
Industrial and Engineering Chemistry Research 38. 1999. pp. 3932 – 3941, [3] Chao L.i, Henghu S., Longtu L.: A review: The comparison between alkali-activated slag (Si+Ca) and metakaolin (Si+Al) cements, Cement and Concrete Research Vol. 40, Issue 9, September 2010, p.1341-1349, dostupné z http://www.sciencedirect.com/, [4] Drochytka, R., Dohnálek, J., Bydžovský, J., Pumpr, V., Dufka A., Dohnálek P.: Technické podmínky pro sanace betonových konstrukcí TP SSBK III. 1. vydání.
The development of these materials at the Faculty of Civil Engineering in Brno is a continuous and henceforward ongoing process.
Industrial and Engineering Chemistry Research 38. 1999. pp. 3932 – 3941, [3] Chao L.i, Henghu S., Longtu L.: A review: The comparison between alkali-activated slag (Si+Ca) and metakaolin (Si+Al) cements, Cement and Concrete Research Vol. 40, Issue 9, September 2010, p.1341-1349, dostupné z http://www.sciencedirect.com/, [4] Drochytka, R., Dohnálek, J., Bydžovský, J., Pumpr, V., Dufka A., Dohnálek P.: Technické podmínky pro sanace betonových konstrukcí TP SSBK III. 1. vydání.
Online since: December 2012
Authors: Ayo Samuel Afolabi, Kazeem Oladele Sanusi, Ambali Saka Abdulkareem, Bada Samson Oluwaseyi
Effect and Control of Suspended Solids at the Blast Furnaces
Ayo Samuel Afolabi1,a, Kazeem Oladele Sanusi1,b ,
Ambali Saka Abdulkareem1,c and Oluwaseyi Samson Bada 2,d
1Department of Civil and Chemical Engineering, College of Science, Engineering and Technology, University of South Africa, P/Bag X6 Florida 1710, Johannesburg, South Africa
2Department of Mineral Processing, Mintek, Johannesburg, South Africa, P/Bag x3015, Randburg, South Africa
aafolaas@unisa.ac.za, bsanusko@unisa.ac.za, ckasaka2003@yahoo.com, dsamson.bada@wits.ac.za
Keywords: Blast furnace, Conductivity, COD, Effluent, Gas scrubbing, Steel making.
Civil Eng. 13, (2011) 13
Awan, Agricultural and food chemistry, institute of environmental science and engineering (IESE), National University of Sciences and Technology (NUST).
Civil Eng. 13, (2011) 13
Awan, Agricultural and food chemistry, institute of environmental science and engineering (IESE), National University of Sciences and Technology (NUST).