Thermal performance of variable density wall panels made using Portland cement or inorganic polymer concrete

2013 ◽  
Vol 48 (3) ◽  
pp. 643-651 ◽  
Author(s):  
James R. Mackechnie ◽  
Larry A. Bellamy
Keyword(s):  
Portland Cement ◽  
Thermal Performance ◽  
Variable Density ◽  
Inorganic Polymer ◽  
Polymer Concrete ◽  
Wall Panels

Mixture Ratio Design of Inorganic Polymer Concrete and the Study of Expansive Performance

2013 ◽  
Vol 357-360 ◽  
pp. 1142-1147 ◽  
Author(s):  
Li Ming Yu ◽  
Zhe An Lu ◽  
Xiao Hui Yuan ◽  
Hui Guo Chen
Keyword(s):  
Volume Growth ◽  
Inorganic Polymer ◽  
Polymer Concrete ◽  
Material Strength ◽  
Mixture Ratio ◽  
Engineering Research ◽  
Expansive Agent ◽  
New Material ◽  
Dry Shrinkage ◽  
Mixture Ratio Design

norganic polymer concrete of a new environment-friendly material has been the hot issue in engineering research so far. For this new material, the main job of the paper includes: we design mixture ratios of inorganic polymer concrete by ourselves, testing the concrete in the age periods of 3, 7, 28 d. The results indicate that this kind of material strength develops mainly in the first 3 d, the strength grows slowly in the later stage; the dry shrinkage of the configured concrete properties are measured, the curve of dry shrinkage shows that the dry shrinkage occurs mainly in the first 14 d and develops slowly in the late; And measure the expansion performance of the concrete member mixed the different categories expansive agent, the results show that the volume growth of mortar specimens to join HCSA expansion agent are obvious; Test results provide a certain basis for the inorganic polymer concrete of micro expansion.

Research of the Thermal Performance of a New Type of Rock Wool Color Steel Sandwich

2013 ◽  
Vol 482 ◽  
pp. 81-84
Author(s):  
Ke Wei Ding ◽  
Wu Sun ◽  
Dong Chen
Keyword(s):  
Finite Element ◽  
Performance Analysis ◽  
Thermal Performance ◽  
Finite Element Software ◽  
Interior Wall ◽  
Wall Panels ◽  
New Ideas ◽  
New Type ◽  
Rock Wool

This paper introduces a new type of rock wool color steel sandwich which is produced by Anhui sambo steel co.,Ltd. The thermal performance analysis of this kind of sandwich is conducted through the finite element software ANSYS in this paper, which reveal the widespread existence of cold bridge phenomenon. And this paper also propose several new ideas on how to reduce the cold bridge condensation of interior wall panels of building.

Shear behaviour of inorganic polymer concrete beams reinforced with basalt FRP bars and stirrups

2021 ◽  
Vol 255 ◽  
pp. 112901
Author(s):  
Xiaochun Fan ◽  
Zhengrong Zhou ◽  
Wenlin Tu ◽  
Mingzhong Zhang
Keyword(s):  
Concrete Beams ◽  
Inorganic Polymer ◽  
Shear Behaviour ◽  
Polymer Concrete ◽  
Frp Bars

scholarly journals Design and Assessment of a Lightweight Polymer Concrete Utility Manhole

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Luciano Leonardi ◽  
Teresa M. Pique ◽  
Tomas Leizerow ◽  
Humberto Balzamo ◽  
Celina Bernal ◽  
...  
Keyword(s):  
Portland Cement ◽  
Wall Thickness ◽  
Chemical Resistance ◽  
Mechanical Performance ◽  
Minimum Weight ◽  
Polymer Concrete ◽  
Portland Cement Concrete ◽  
Epoxy Amine ◽  
Amine System ◽  
Typical Soil

Polymer concrete is a composite using polymer instead of portland cement as a binder. It allows optimizing the tensile and cracking strength and the chemical resistance of a concrete structure. In this study, different formulations were assessed in order to optimize a polymer concrete underground utility manhole with minimum weight. Formulations were based on an epoxy-amine system mixed with fine regular-weight aggregates and ultralightweight aggregates. The objective was to design and assess an underground utility structure with the epoxy chemical resistance, strength, and lightweight and to study whether the replacement of regular-weight aggregates by ultralightweight aggregates would contribute to improve the strength and reduce the structure weight. Two polymer concrete systems were designed from its formulation, and their mechanical performance was evaluated experimentally. A numerical model was developed for a polymer concrete underground utility structure made from the different formulations. It was simplified as a box subjected to typical soil loads. The size of the box is a standard one. Its minimum wall thickness is specified for sustaining the in-use service pressures obtained from numerical simulation. The model predicted that the epoxy/regular-weight aggregate formulation could be used with a wall thickness significantly smaller than the formulation with ultralightweight aggregates. In addition, the underground utility structure made with this formulation would weigh six times less than the same box made with a traditional portland cement concrete.

scholarly journals Portland versus alkali-activated cement wall panels containing mine tailing as aggregate: one-story house thermal performance simulation in a Brazilian and Portuguese hot and humid climate

2019 ◽  
Vol 274 ◽  
pp. 03003
Author(s):  
Miriam O. Baumbach ◽  
Lucas T. S. Ramos ◽  
Raquel P. Batista ◽  
Raquel D. Oliveira ◽  
Paulo H. R. Borges
Keyword(s):  
Portland Cement ◽  
Carbon Dioxide Emissions ◽  
Thermal Conditions ◽  
Mining Activities ◽  
Humid Climate ◽  
Adaptive Comfort ◽  
Wall Panels ◽  
Hot And Humid Climate ◽  
Belo Horizonte ◽  
Alkali Activated

Alkali-activated materials (AAM) compared to Portland cement (PC) may significantly reduce the carbon dioxide emissions, as well as the consumption of non-renewable natural resources in civil engineering applications. Further environmental advantages are possible if natural aggregates used for mortars and concretes are replaced with residues and wastes from industrial or mining activities. This paper compares the performance of PC with AAM as binders in cementitious wall panels for external cladding in hot and humid climate. Three different cementitious matrices are proposed, consisting of either 100% Portland cement (PC), 100% alkali-activated metakaolin (MK) or 80/20 alkali-activated Metakaolin/Blastfurnace slag (80/20 MK/BFS). Mortars were produced with the addition of tailing from iron-ore mining activities in the state of Minas Gerais, Brazil, at an aggregate to binder ratio of 1.0 for all matrices. The thermal property determined for the three mortars was Thermal Conductivity using a heat flow meter (HFM) apparatus according to ISO 8301 (1999); their apparent density was also measured. After that, one-story house building simulation was carried out using the Energy Plus Software. The main room annual operative temperature provided by different panels used as cladding was compared to the adaptive comfort range established on ASHRAE Standard 55/2013 for a Brazilian and Portuguese hot and humid climate. According to the Climate Zone Definitions of ANSI/ASHRAE Standard 169/2006, Belo Horizonte (Brazil) and Funchal (Portugal) were selected as a sample of 2A zone that presents a hot and humid climate. Partial results of this research were presented in this paper. Results show that building simulations can effectively contribute to validate the selection of materials in the production of sustainable wall panels that provide suitable thermal conditions to the users in hot and humid climate.

scholarly journals Special Concrete with Polymers

2016 ◽  
Vol 14 (11) ◽  
pp. 7-10
Author(s):  
Nicolae Angelescu ◽  
Ioana Ion ◽  
Darius Stanciu ◽  
José Barroso Aguiar ◽  
Elena Valentina Stoian ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Portland Cement ◽  
Epoxy Resin ◽  
Raw Materials ◽  
Polymeric Materials ◽  
Polymer Concrete ◽  
Fine Aggregate ◽  
Concrete Mixtures ◽  
Experimental Works ◽  
Materials Used

Abstract The development of polymeric materials offers new perspectives of science and technology due to their outstanding properties. These properties are obtained either due to the effect of dispersion polymers and their polymerization either due to their intervention in structure formation. They were prepared epoxy resin polymer concrete, Portland cement, coarse and fine aggregate and to evaluate the influence of resin dosage on microstructures and density of such structures reinforced concrete mixtures. The paper detailing the raw materials used in experimental works and structural properties of concrete studied.

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