Evaluation of seismic behaviour of rammed earth structures

2014 ◽  
pp. 167-172
Keyword(s):  
Rammed Earth ◽  
Seismic Behaviour ◽  
Earth Structures

scholarly journals Analysis of heat transfer coefficient of rammed earth wall in traditional houses in Vojvodina

2017 ◽  
Vol 21 (6 Part B) ◽  
pp. 2919-2930
Author(s):  
Vesna Lovec ◽  
Milica Jovanovic-Popovic ◽  
Branislav Zivkovic
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Transfer Coefficient ◽  
Thermal Characteristics ◽  
Rammed Earth ◽  
Single Family ◽  
Building Stock ◽  
Earth Structures ◽  
Rammed Earth Wall

Traditional Vojvodina house represents an important part of the building stock of the northern Serbian province of Vojvodina. The research examines the thermal transmittance of the walls of rammed earth, which is the basic structural and fa?ade element of traditional Vojvodina house, in two ways: by calculations in accordance with Serbian regulations and by measuring in situ. Parameters obtained from the measurements are compared with the calculated values for the three typical traditional Vojvodina rammed earth single family residential houses. The comparison between the values of the heat transfer coefficient, obtained by the calculation, and the results determined by in situ measurements show significant differences. It indicates that the thermal characteristics are better than calculated ones according to national regulations, but at the same time that, due to the complexity of the rammed earth walls and differences in the rammed earth structures, the results differ from case to case and can not be standardized.

Studies for the restoration of the Islamic Bofilla Tower as an example of wood use in rammed earth structures

2016 ◽  
Vol 7 ◽  
pp. 269-279
Author(s):  
C. Mileto ◽  
F. Vegas ◽  
V. Cristini ◽  
N. Macchioni ◽  
L. Sozzi ◽  
...  
Keyword(s):  
Rammed Earth ◽  
Earth Structures

Hydro-Mechanics Coupling on Rammed Earth Material: Drying Experiment at Structural Scale

2022 ◽  
Author(s):  
Taini Chitimbo ◽  
Feras Abdul-Samad ◽  
Noémie Prime ◽  
Olivier Plé
Keyword(s):  
Compressive Strength ◽  
Experimental Studies ◽  
Image Correlation ◽  
Rammed Earth ◽  
Moisture Evaporation ◽  
Earth Structures ◽  
Wall Element ◽  
Two Stages ◽  
Structural Scale ◽  
Evaporation Flux

Rammed earth structures are very sensitive to hydric conditions. Experimental studies have been undertaken to understand the link between liquid water transfer and mechanical behavior at structural scale. This study was done on a prismatic rammed earth sample of 15cm x 15cm x 45cm, structured as a wall element with several layers. Samples were subjected to one dimensional drying in an indoor environment. Humidity and temperature sensors were placed on each layer inside the sample. The kinetic of drying was monitored by continuous weighing the sample and humidity measurement at a regular interval. Results of water content evolution suggest that samples dry in two stages; the first stage is associated with relatively high evaporation flux of 13.88 g m-2h-1 while the second stage has very low flux of moisture evaporation. Unconfined compressive strength was performed in drying samples after 0, 2, 6 and 8 weeks of drying. In parallel, digital image correlation was used to determine the stiffness of samples. Results show an increase in compressive strength by the rate of 98 kPa per week in the first two weeks, then this rate reduces to 23 KPa per weeks after 8 weeks. These experimental results will allow to enhance the 3D hydro mechanical numerical model developed in the laboratory.

Rammed Earth Structures

1996 ◽  
Author(s):  
Julian Keable ◽  
Rowland Keable
Keyword(s):  
Rammed Earth ◽  
Earth Structures

scholarly journals Fujian Tulou Rammed Earth Structures: Optimizing Restoration Techniques Through Participatory Design and Collective Practices

2020 ◽  
Vol 44 ◽  
pp. 92-99
Author(s):  
Evangelia Frangedaki ◽  
Xihong Gao ◽  
Nikos D. Lagaros ◽  
Bruno Briseghella ◽  
Giuseppe Carlo Marano ◽  
...  
Keyword(s):  
Participatory Design ◽  
Rammed Earth ◽  
Restoration Techniques ◽  
Earth Structures

scholarly journals DAMAGE IN HISTORIC RAMMED EARTH STRUCTURES: A CASE STUDY AT AMBEL, ZARAGOZA, SPAIN

2012 ◽  
Author(s):  
Paul Jaquin ◽  
Christopher Gerrard ◽  
Charles Augarde ◽  
Jacinto Canivell
Keyword(s):  
Rammed Earth ◽  
Damage Mechanisms ◽  
North East ◽  
The North ◽  
Water Based ◽  
Military Orders ◽  
Earth Structures ◽  
Almost All ◽  
The Military

This paper examines the possible causes of damage to historic rammed earth structures based on a case study of a medieval and later building, formerly a preceptory of the Military Orders, in the village of Ambel in Aragon, north-east Spain. Structural and water-based mechanisms of damage are reviewed and an engineering basis for the cause of damage is proposed. Since a number of repair strategies have already been attempted on this structure, their effectiveness is also discussed. A four storey granary at the north-east corner of the preceptory complex is described in detail since it encapsulates many damage mechanisms and repair strategies which are common to historic rammed earth. The granary tower has a random rubble foundation, which is probably in part the remains of previous building, with rammed earth walls for the three storeys above. This rammed earth was originally rendered and scored to imitate fired brick but almost all of this has now fallen away. The gable end of the building has fired brick quoins, and now leans outwards slightly at the head of the wall. There is evidence of water damage because the building was neglected in the past, though not enough to initiate collapse. Structural and water based damage mechanisms are identified, and example repair strategies used at Ambel are described.

Strength evaluation of jute fabric for the reinforcement of rammed earth structures

2017 ◽  
Vol 113 ◽  
pp. 1-13 ◽  
Author(s):  
Mario Fagone ◽  
Federica Loccarini ◽  
Giovanna Ranocchiai
Keyword(s):  
Rammed Earth ◽  
Strength Evaluation ◽  
Jute Fabric ◽  
Earth Structures
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