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Register a new userRecycling Building Demolition Waste In Self Compacting Concrete
استخدام مخلفات الأبنيّة البيتونيّة المهدّمة في البيتون ذاتيّ التوضّع
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و تكمن غاية البحث لاستبدال جزئي للحصويات المعاد استخدامها بالحصويات الطبيعية, تشكيل خمس خلطات بنسب مختلفة من الحصويات المعاد تدويرها من (W/C (0-100% ثابتة, و دراسة إمكانية التخلص من أنقاض الأبنية المهدمة من خلال إعادة استخدامها في أعمال البيتون و أثر ذلك الايجابي على البيئة.
The main purpose of the research was to partially replace the reused substrates with natural preservatives. Five mixtures were formed with different percentages of the recycled granules (0- 100%) and for constant W/C, and the study of the possibility of disposal of the ruins of the destroyed buildings through their reuse in the work of the concrete and the positive effect on the environment.
References used
American Society for Testing Materials , ASTM 1994
M.BUIL. utilisations des Fillers ultra-fins dans les Betons, Bulletin . I.A.E.G No 30 FRANCE 1984
The European Guidelines for Self- CompactingConcrete (Specification, production and Use), May 2005
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Featuring a self-compacting concrete (SCC) high capacity to fill the mold and
passing ability through barriers under the influence of self-weight without vibration,
thereby reducing the required labour and reduces the noise associated with vibratio
n.
Modern applications focused on improving the specifications of high performance,
resistance and speed of construction. The research presents an experimental study for an
(SCC) mix produced from local materials, including the necessary tests on the proposed
concrete mix, which approved in the global codes. These experiments determine the basic
characteristics of (SCC) in fresh case were also identified pressure resistance of (SCC) and
determine the value of the modulus of elasticity (E) and the behavior curvatures. All mixes
have been achieved global standards and conditions, and the required experiments were
done in the laboratory of civil engineering faculty at Tishreen University.
The present study contains results of some experiments that had been
carried out to study the advantage of olive mill waste water (OMW) use ability
and in sugar's factories wastes in Syria as fungi cultures to produce stall-feed
rich in proteins.
The results showed that Geotrichum rich in proteins had been grown and
geminated more rapidly and revealed that inorganic nitrogen additions
(nitrates or ammonia) to the culture have advanced the fungi growth which is
rich in proteins, the highest quantity of proteins was (8.6 g/l) in NH4NO3 (1.5%)
media and urea (2.0%) media whereas the fungi biomass was higher with
NH4NO3 (1.5%) than with urea (2.0%).
In this study, iron chloride solution ١٠٪ was used as absorbance matter
which absorbs all dyes and the organic substances during its precipitation .
The accumulation of these wastes in nature is considered to be a serious source
of pollution and h
ealth hazard. We determined the optimal pH and the optimal
dose of a minimom number of the reagent used as well as the water of
dyehouse baths, and we compared the difference between using iron chloride
and aluminium sulfate .We adopted the experimental observation in measuring
the results and the strength of absorption within the spectrofield in a wave
length of ٣٥٠ – ٧٥٠ nanometer .
Plastic and rubber products considered of being a great importance to humans, but
their residues and wastes are a real environmental disaster. They are dumped in fields,
streams and forests or buried in large landfills that pose a serious hazard th
at needs to work
on solve it in the best possible way.
On the other hand, the economic problems caused by the erosion of concrete cement
have made it the major problem of infrastructure in the industrialized countries. Over the
past three decades, this problem has reached alarming proportions, which led to high repair
costs, whether in concrete or in reinforcing steel, Especially acidic media due to concrete
permeability of acid rainwater, where these costs exceeded initial construction amounts in
some cases.
This paper deals with the recycling of used tires and some types of plastic waste to
be used in the preparation of insulating materials for water and heat at a low cost compared
to the insulation materials currently used in the construction process, in addition to the
preparation of floor tiles for internal and external use.
The objective of this research is to study the effect of wood ash in
rheological properties of Self – compacting mortar (SCM). By
implemented some mixtures with different percentage from wood
ash with two kinds of cement and three kinds of super plasticizer
and study the effect in slump flow and yield stress to this
mixtures.
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