ويركزمعهد بحوثالعامة لليمينغ الصناعة الثقيلةفي مجال البحوث وتطوير التكنولوجيا المتقدمة والمنتجات الموجهة لصالح العملاء، فضلا عن بناءالقدرة التنافسية الجوهريةليجعل يمينغالصناعة الثقيلةرائدةفي هذه الصناعة.من خلال توفيرنتائج البحوثالأساسية، ويدعم المعهديمينغالصناعة الثقيلةالتكنولوجيا والمنتجات لتكون أعلىمنهافي العالمالقائمة.
معهد بحوثالعامة لليمينغ الصناعة الثقيلةهيقسم البحث والتطويرالأوليةللبحوثالتقنيةوالإدارة التقنية. وهي مسؤولة عنتطوير التكنولوجياالمطبقة علىيمينغجميع المنتجات، وإجراء البحوث الفنيةمقدمةعلى المنتجات الجديدةووضعالمعايير؛البحثالاهتزاز، والأثر، والضوضاء، والتكنولوجيا الهيدروليكية، والمطابقة الطاقةوتوفير الطاقة، والمواد الجديدة، وأنظمة التحكم، وخلق تكنولوجياتمبتكرة ومنتجاتحمليوبناءمنصة علىشبكة خاصةوعامةللتجاربوالاختباراتوذلك لتبادل التجربةالعامة ونتائج الاختبار.
This experimental study explores in detail the crushed stone dust which is locally available industrial solid waste material in India as alternative material to natural sand that is being conventionally used as fine aggregate in cement concreteConcrete mixtures incorporating various levels of LWA manufactured from expanded clay as coarse aggregate and crushed stone sand as fine aggregate were tested for strength Lightweight aggregate concrete produced with crushed
The study has present that crushed stone dust can be used as readily available solid waste as an alternative to natural sand in cement concrete construction The suitability of crushed stone dust waste as fine aggregate for concrete has been assessed by comparing its basic properties with that of conventional concrete made with natural sand TwoStudy on Replacement of Sand in Concrete with Crushed
Stone powder produced from stone crushing zones appears as a problem for effective disposal Sand is a common fine aggregate used in construction work as a fine Hence, the present review comprehensively compares the performance of recycled fine aggregates concretes with other alternative fine aggregates such as Cleaner production of concrete by using industrial by
The disposal of stone dust and demolished old concrete is becoming a serious issue To conserve the diminishing natural resources, stone dust and recycled Stone dust—Appropriate stone dust is used and taken from local stone vendors Ceramic waste —Ceramic waste is achieved by broken tiles and other porcelain Use of Stone Dust and Ceramic Waste in Fine Aggregate
In this work two types of fine aggregate were used and replaced partially (0%, 25%, 50%) by stone dust At the same time the cement was also replaced partially The justifiable solution for the production of cement can be the adequate utilization of waste products like crushed stone dust as a partial replacement of Experimental study on finecrushed stone dust a solid waste as a
The gradation of the particles of crushed stone sand and natural sand was determined by the sieve analysis of fine aggregates K Lewis, T harshanandan, A study on the use of Crushed Stone Aggregate & Crushed Dust Mixes in Flexible Pavements, International Journal of Science and Engineering Research, volume 4,In the current study, marble waste aggregate (MWA) and stone dust (SD) were used as partial replacements for coarse aggregate and fine aggregate, respectively, for normal strength concrete The conventional mix design had a mix ratio of 1:2:4 of cement: fine aggregate: coarse aggregate, respectively, and a water to cement ratio of 05Prediction of Strength Properties of Concrete Containing Waste
obtain coarse aggregate / concrete ballast Crushed stone powder does not meet standard specifications for fine aggregates in cement and concrete mortar Efforts have been made to replace the sand in the river with stone dust When the coarse aggregate is produced by the noise of the stoneTo conserve the diminishing natural resources, stone dust and recycled aggregates obtained from crushed rubble can be reused in building industry The suitability of stone dust as a fine aggregate and recycled concrete aggregates as coarse aggregate is a topic of research interest for researchers in the pastStone dust and recycled concrete aggregates in concrete
As per IS 383:1970[12] grading requirements of natural fine aggregates are different as that of crushed stone fine aggregates for manufacturing of concrete These standards are mentioned briefly in Table 1 The use of crushed limestone dust may affect the properties of concreteCrushed stone, also called aggregate, refers to medium and coarse grain size material which is produced by manmade machinery and techniques rather than occurring naturally, such as in a riverbed or canyon Crushed aggregate, often known as rock aggregate, is a crushed stone product that is mined Larger stones are crushed in What Is Crushed Aggregate And What Is It Used For? Barclay
In the present study, ASTM Type IL Portland limestone cement [45], stone chips, river sand, CSD, and NF were the constituent materials used to prepare the concrete mixTable 1 shows the physical properties of the natural fine and coarse aggregates along with those of CSD Stone chips were used in a mixture of 20 mm downgraded (70%) Stone dust is such a promising waste to be mentioned with high specific gravity, almost similar particle sizes that make it potential for use as fine aggregate in concrete (Reddy et al, 2015)However, stone dust has little lower value of fineness modulus compared to natural sand (Suman and Srivastava, 2015)Worldwide, stone Predicting the strength of concrete made with stone dust and
A highearlystrength Portland cement (ASTM Type III; 438 m 2 /kg Blaine fineness) was used Coarse aggregate was crushed granite stone with a maximum size of 16 mm A sulfonate melamine formaldehyde condensate superplasticizer, without chlorides, was incorporated in the concrete mixtures In this work, silica fume was not used While quarry dust and limestone dust were also employed as nonreactive industrial waste material, to identify the specific effect of ovendried alum sludge in concrete All the materials were crushed to obtain smaller particle size and then used as replacement of fine aggregate in different percentages (5, 10 and 15%)Effects of different industrial waste materials as ScienceDirect
The solid waste material, like crushed stone dust of a light brown colour used as a mineral admixture and having a bulk density of 1818 kg/cubic cm and water absorption of 4%, is acquired from Shri Krishna Construction Company and Earth Movers in Ghaziabad, Uttar Pradesh, India, as described in IS 2386, Part III, 1963 Compressive The Ordinary Portland Cement (OPC) 53 grade used in the project work This is used as main binder in the mixes FINE AGGREGATE AND COARSE AGGREGATE: Fine and coarse aggregate make up the bulk of concrete mixture Sand, natural gravel and crushed stone are mainly used for this purpose For fine aggregates natural sand is provided EXPERIMENTAL INVESTIGATION ON PARTIAL REPLACEMENT OF
Aggregates materials such as sand, gravel, or crushed stone usually occupies approximately 60–75 % of the volume of concrete used for various construction purposes Aggregate properties significantly affect the workability, durability, strength, thermal properties, and density of hardened concrete in civil constructionsChipseal aggregate on Ellsworth Road in Tomah, Wisconsin Construction aggregate, or simply aggregate, is a broad category of coarse to mediumgrained particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates Aggregates are the most mined materials in the worldConstruction aggregate
To conserve the diminishing natural resources, stone dust and recycled aggregates obtained from crushed rubble can be reused in building industry The suitability of stone dust as a fine aggregate and recycled concrete aggregates as coarse aggregate is a topic of research interest for researchers in the pastThe suitability of crushed stone dust waste as fine aggregate for concrete was accessed by comparing its basic properties with that of conventional concrete Crushed stone dust waste can be used(PDF) Crushed stone waste as fine aggregate for concrete
In the study, a mix of M30 grade concrete was used and designed as per the guidelines of IS 10,262 2009 [33] 10, 20, 30, and 40% of fine aggregates were replaced with crushed limestone dust in the concrete mixWatercement ratio and content of cement were kept constant (0462 and 430 kg/m 3 respectively) in the study Coarse Additionally, under Indian circumstances, crushed stone dust is a costeffective alternativeCrushed stone dust may be used as a fine aggregate in cement buildings in undeveloped countries whenStudy on Compressive Strength of Quarry Dust as Fine
Table No 2 Properties of stone Dust Cube Figure1: Grain size distribution of M Sand Water: For mixing and curing of concrete (Stone dust used as a fine material), potable water was used as prescribed in IS:4562000 RESULTS AND DISCUSSIONS There is the table3 which is showing result of the compressive strength on the different2 Materials and methods LWA having a unit weight of 1536 kg/m 3 and limestone crushed aggregate having a maximum size of 19 mm, procured from a local aggregate crushing facility were used as LWA and NWA, respectively Locally produced crushed stone sand having fineness modulus of 418 was used as fine aggregateLightweight aggregate concrete produced with crushed stone sand as fine
