Aggregate Use In Concrete In Iraq

Use of waste plastic in concrete mixture as aggregate replacement

Request PDF | Use of waste plastic in concrete mixture as aggregate replacement | Industrial activities in Iraq are associated with significant amounts of non-biodegradable solid waste, waste ...

Compressive strength of light-weight concrete material …

The coarse aggregate used in this study was naturally available in the eastern region of Iraq, from a place known as Chlaat (Maysan, Iraq) and used in the concrete material. The maximum size of the coarse aggregate used this study was 10 mm. Grading of the coarse aggregate was computed based on the IQs No.45 Zone II (1984) as shown in Table 4.

How to Do Exposed Aggregate Concrete

One top-surface retarder product is Surface Deactivator by Brickform, which provides ten exposure depths, from a simulated light acid etch or sand blast finish up to full exposure of 1 ½" aggregate. Surface Deactivator offers an extended window before the surface paste is removed, allowing the concrete to harden properly, which locks in the aggregate and decreases pop-outs.

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aggregate in concrete construction. The use of supplementary cementing materials such as ground blast furnace slag, silica fume, metakaolin, coal fly ash, and natural …

MECHANICAL PROPERTIES OF RECYCLED AGGREGATE …

Department of Civil Engineering, Nahrain University, Baghdad, Iraq E-Mail: dr_adel_azzawi@yahoo ... It may be concluded that the use of recycled aggregates in concrete may help to solve a

The Open Civil Engineering Journal

Civil Engineering Department, Al-Mustansiriyah University, Baghdad, Iraq Received: October 8, 2018 Revised: November 14, 2018 Accepted: December 4, 2018 ... the second provides …

The Effect of Aggregate Properties on Concrete

The Effect of Aggregate Properties on Concrete Concrete is a mixture of cementious material, aggregate, and water. Aggregate is commonly considered inert filler, which accounts for 60 to 80 percent of the volume and 70 to 85 percent of the weight of concrete. ... Concrete is more workable when smooth and rounded aggregate is used instead of ...

How does Aggregate Properties Affect Concrete?

Concrete is more workable when smooth and rounded aggregate is used instead of rough angular or elongated aggregate. Crushed stone produces much more angular and elongated aggregate, which have a higher surface to volume ratio better bond characteristics but require more cement paste to produce a workable mixture.

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in Iraq Adnan A. Muhsin1,*, Nabeel Hameed Al-Saati1, Suad Mohammed Heil1, Khalid Hashim 2,3, Ahmed H. AlKhayyat4 ... aggregate in concrete construction. The use of supplementary cementing materials such as ground blast furnace slag, silica fume, metakaolin, coal fly ash, and natural pozzolan can produce a very significant effect on the pore ...

Iraqi Geological Journal

Owaidi, 2021). Fine aggregates are unique in their use as binder materials for building units; the gradient property is one of the important properties in aggregates as it greatly affects the …

Iraqi Academic Scientific Journals

Fine aggregates used for concrete works in Sulaymaniyah city frequently fail to meet the standard requirements for gradation and fineness modulus in cement concrete. This paper aims to critically evaluate gradation, fineness modulus, and clay contents of various natural sands produced and used for concrete work in the region.

Iraqi Specifications No. (45), 1984 for Aggregates of Natural Resources

Iraqi Specifications No. (45), 1984 for Aggregates of Natural Resources used for Concrete and Construction. has been cited by the following article: ... Erbil, Iraq. 2 Civil Engineering Department, Faculty of Engineering, Koya University, Erbil, Iraq. 3 ... (960×960×50) mm were investigated with simply supported edges. Concrete cube strength ...

Types of Aggregate and Their Uses | DIY Doctor

Vermiculite aggregate used for light weight concreting duties – Image courtesy of mikewye.co.uk. Standard Aggregate: The most commonly used types of aggregate that include sand and gravel. Generally used in making concrete mixes to provide both mass and strength; Standard aggregate includes general purpose sand and gravel

Innovative Concrete Solutions

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Technological strategies for recycling concrete block in Iraq

Therefore, the research problem is determined as the need to clarify the concept of concrete recycling and concrete waste recycling in Iraq, due to lack of local knowledge, to produce recycled concrete aggregate, applicable in the fields of architecture and can be used in new concrete mixtures.

Modified Concrete by Using a Waste Material as a Coarse Aggregate

Natural aggregate is the main source of aggregate used in concrete work in Iraq. Synthetic aggregate is also used in limited scale around the world. An industrial solid waste is produced from iron ...

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In Iraq, efforts to utilise recycled aggregate in the manufacture of high strength recycled aggregate concrete have been relatively unsuccessful; thus, to date, the use of …

Sustainable Materials Used as Lightweight Aggregate : (An …

In general, using waste material as lightweight aggregate decreases the concrete's overall weight. The materials used as lightweight aggregate in concrete are discussed in this study. According to research, utilizing trash as a lightweight aggregate not only improves the characteristics of concrete but also gives a sustainable approach to ...

(PDF) Critical Evaluation for Grading and Fineness Modulus of Concrete

Fine aggregates used for concrete works in Sulaymaniyah city frequently fail to meet the standard requirements for gradation and fineness modulus in cement concrete. ... 10 Volume 27 October 2021 Civil and Architectural Engineering Critical Evaluation for Grading and Fineness Modulus of Concrete Sands used in Sulaymaniyah City-Iraq Muhammad A ...

Processing Lightweight Aggregate to produce Lightweight Concrete

The standard tests have been made and were adopted in the production of concrete blocks, lightweight concrete block produced from ALHadbaa aggregate, used in bearing walls, have 28 – day ...

(PDF) Utilization of Iraqi Metakaolin in Special Types of Concrete…

with natur al coarse aggregate and t he ot her with r ecycled concrete coarse aggregate. For each group, the iron filling was added at 0. 5%, 0.75%, and 1%.

Aggregates for Concrete

Sieve sizes commonly used for concrete aggregates are detailed in Table 1, and various physical properties of normalweight aggregates, with typical range values, are shown in Table 2. Coarse and fine aggregates are generally sieved separately. That portion of an aggregate passing the 4.75 mm (No. 4)

Sustainable Concrete in the Construction Industry of …

The coarse aggregate used was crushed rock with a maximum size of 20 mm and the fine aggregate was river bed sand with particles passing through 5 mm, both …

Use of waste plastic in concrete mixture as aggregate replacement

Industrial activities in Iraq are associated with significant amounts of non-biodegradable solid waste, waste plastic being among the most prominent. This study involved 86 experiments and 254 tests to determine the efficiency of reusing waste plastic in …

The Use of AL-Malih Valley Crushed Limestone as …

552. The Use of AL-Malih Valley Crushed Limestone as. Coarse Aggregate in Concrete Production. Abstract. The southern part of Iraq suffers from shortages o f suitable natural coarse aggregate for ...

Exposed Aggregate Concrete: Cost, Pros, and Cons

When pouring exposed aggregate concrete, a contractor removes the top layer with a chemical inhibitor, water washing, or etching. Exposed aggregate concrete is also called decorative concrete or pebble finish. How is Exposed Aggregate Concrete Made? There are two main ways to create exposed aggregate concrete: mixing and seeding or topping.

Iraqi Geological Journal

aggregate's applicability was used for some structural uses of roads and concrete works in a few Kirkuk Governorate locations (northern Iraq) (Al-Tamimi, 2020).Morover, The Marshall …

Iraqi Geological Journal

aggregate's applicability was used for some structural uses of roads and concrete works in a few Kirkuk Governorate locations (northern Iraq) (Al-Tamimi, 2020).Morover, The Marshall method and the super pave method were tested with limestone aggregates in places other than Iraq. These methods worked

Production of Structural Light-Weight Aggregate …

The second mix involving the pumice stone which is obtainable in northern Iraq used as a coarse aggregate. The third mix of structural lightweight concrete produced by using composite aggregates ...

(PDF) The influence of recycled concrete aggregate on

This paper is completed by the formulation of three types of concrete with a constant w/c ratio of 0.54: A concrete with gneiss aggregates (CSGG), a mixed concrete composed of river sand and ...