scholarly journals Structural properties of two brick-concrete-block wall constructions and a concrete-block wall construction sponsored by the National Concrete Masonry Association

1939 ◽  
Author(s):  
Herbert L Whittemore ◽  
Ambrose H Stang ◽  
Douglas E Parsons
Keyword(s):  
Structural Properties ◽  
Concrete Block ◽  
Concrete Masonry ◽  
Block Wall ◽  
Wall Construction

Aerated Concrete Block Filler Wall Construction Technology and Quality Control of Preventive Measures

2014 ◽  
Vol 1004-1005 ◽  
pp. 1492-1495
Author(s):  
Li Mei Wang ◽  
Feng Mei Pi ◽  
Ya Jie Yuan
Keyword(s):  
Preventive Measures ◽  
Material Design ◽  
Concrete Block ◽  
Effective Control ◽  
Wall Material ◽  
Construction Technology ◽  
Block Wall ◽  
Aerated Concrete ◽  
Wall Construction ◽  
Design Construction

Based on aerated concrete block wall material, design, construction three aspects under effective control, so as to avoid the cracking of the wall and carry out.

Tests Results Strength and Thermophysical Properties of Aerated Concrete Block Wall Samples with the Use of Polyurethane Adhesive

2014 ◽  
Vol 941-944 ◽  
pp. 786-799 ◽  
Author(s):  
G. I. Grinfeld ◽  
Alexsandr S. Gorshkov ◽  
Nikolay I. Vatin
Keyword(s):  
Thermal Conductivity ◽  
Thermophysical Properties ◽  
Concrete Block ◽  
Masonry Walls ◽  
Test Results ◽  
Polyurethane Adhesive ◽  
Concrete Masonry ◽  
Concrete Blocks ◽  
Block Wall ◽  
Aerated Concrete

This article deals with the strength and thermophysical test results made on the basis of the masonry samples of cellular autoclave curing concrete (aerated concrete blocks) with the use of polyurethane adhesive. Aerated concrete masonry walling with the use of polyurethane adhesive is indicated herein to be technologically feasible and economically viable. The major advantage of the masonry option under consideration lies in the following aspect: thermal conductivity of polyurethane adhesive used to fasten aerated concrete blocks in masonry walls is significantly less than thermal conductivity of concrete adhesives and mortars. For this reason, thermal insulation properties of the masonry with polyurethane adhesive appear to be better comparatively to the block masonry made with the usage of concrete adhesives of any other type. On the ground of the tests conducted the following was resumed: it is acceptable to carry out masonry works with the use of aerated concrete blocks and polyurethane adhesive in construction of exterior and interior nonbearing walls provided appropriate justifying calculations are made.

scholarly journals Development and Performance Test including Mechanical and Thermal of New Tenon Composite Block Masonry Walls

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Hui Su ◽  
Dongyue Wu ◽  
Mengying Shen ◽  
Wei Chen ◽  
Shilin Wang
Keyword(s):  
Thermal Performance ◽  
Performance Test ◽  
Concrete Block ◽  
Masonry Walls ◽  
Design Code ◽  
Concrete Material ◽  
Mixing Ratios ◽  
Block Wall ◽  
Common Block ◽  
And Performance

To improve the thermal performance of external masonry walls, a new tenon composite block is proposed as the external maintenance component which contains the internal hollow concrete block part, the external block part, and the extruded polystyrene layer fixed by tenons. The production process and concrete material mixing ratio were optimized for the new tenon composite block to promote its application. The mechanical strength and thermal properties of the optimized tenon composite blocks were tested with experiments and numerical simulation in this study. The testing and simulation results indicated that after utilizing the two optimized concrete mixing ratios, the tenon composite block strength matched the strength requirements according to the related design code. The thermal performance of the tenon composite block wall was also good compared with that of a common block wall.

Performance Study on Masonries of Different Aerated Concrete Blocks

2014 ◽  
Vol 633 ◽  
pp. 299-302 ◽  
Author(s):  
Peng Fei Peng ◽  
Xian Ming Qin ◽  
Yu Sheng Wu
Keyword(s):  
Water Absorption ◽  
Natural Condition ◽  
Crack Width ◽  
Concrete Block ◽  
Performance Study ◽  
Shrinkage Cracking ◽  
Concrete Cracking ◽  
Concrete Masonry ◽  
Concrete Blocks ◽  
Aerated Concrete

The masonries with a square of 2m×3m of 3 different aerated concrete blocks were built respectively, and plastered with plastering mortar. The shrinkage-cracking property and other performances of different aerated concrete masonries were studied in natural condition. The results showed that, there were less cracks and smaller crack width in the masonry of aerated concrete with low water absorption, the condition of aerated concrete cracking can be improved by plastering with plastering mortar; the shrinkage of aerated concrete block masonry with low water absorption is smaller, the shrinkage of aerated concrete masonry plastered by special plastering mortar is smaller.

Experimental Study on Compressive Property of New Concrete Block Masonry with Multi-Row Cores

2014 ◽  
Vol 501-504 ◽  
pp. 461-465
Author(s):  
Zhao Yan Cui ◽  
Fu Sheng Liu ◽  
Shun Ke Zhang
Keyword(s):  
Energy Saving ◽  
Diffusion Mechanism ◽  
Concrete Block ◽  
Compressive Property ◽  
Insulation Material ◽  
Test Results ◽  
Failure Characteristics ◽  
New Energy ◽  
Heat Insulation Material ◽  
Block Wall

With the development of energy-saving in buildings, new energy-saving block masonry with multi-row cores is commonly used. In this paper, from the study of typical bearing capacity of multi hole concrete block masonry of combining multiple rows of holes, holes in the multi block wall masonry capacity test of heat insulation material characteristics. Test results show that, in the process of multi hole masonry brittle failure characteristics, built-in straw block in the insulation at the same time, can improve the compressive strength of masonry; masonry local diffusion mechanism under the action of stress is significant; and offer the engineering measures.

Seismic Retrofit of Concrete Block Wall Intersections Using Composite Laminates

2009 ◽  
Vol 29 (11) ◽  
pp. 1609-1625
Author(s):  
Wael W. El-Dakhakhni ◽  
Steve George ◽  
Marwan T. Shedid
Keyword(s):  
Composite Laminates ◽  
Concrete Block ◽  
Seismic Retrofit ◽  
Block Wall

Mechanical Modal and Numerical Simulation of Fracture Process of Block Wall

2011 ◽  
Vol 217-218 ◽  
pp. 1438-1443
Author(s):  
Yan Li ◽  
Xin Sheng Yin ◽  
Bo Wang
Keyword(s):  
Numerical Simulation ◽  
Fracture Toughness ◽  
Fracture Process ◽  
Concrete Block ◽  
Critical Value ◽  
Specimen Size ◽  
Linear Elastic ◽  
Block Wall ◽  
Elastic Fracture ◽  
Aerated Concrete

Aerated concrete is a typical non-uniform quasi-brittle materials, the fracture process is very complicated. To slove the problem of cracks in this block walls, a practical analytical method was proposed based on the vertical mortar joint model to solve the equivalent fracture toughness (the critical value which the crack occurred to spread unstable) With the use of the basic principle of composite material mechanics and linear elastic fracture mechanics. Against the results of the related experiments, the standard deviation and the coefficient of variation of Analytical Solution are smaller, , and the equivalent fracture toughness is the effective fracture parameters of independent of specimen size. So the suggested method is more feasible and applicable, which can forecast autoclaved aerated concrete block wall’s cracking and destroying.

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