Slag backfill construction plan

SLAG CEMENT AND CONTROLLED LOW-STRENGTH MATERIAL

Slag Cement in Construction No. 24 Controlled Low Strength Material (CLSM) is a self-compacting material, consisting principally of cementitious materials and aggregates, and is used as a backfill material in lieu of compacted fill. The material is known by

BACKFILLING WORK PROCEDURE | MATERIAL | FOUNDATION

Procedure for backfill using Clean Sand Subgrade is prepared for the proposed backfilling area at site. FDT is conducted at the required number of points as per SAES A-114. 3. Using Roller Compactor/ Rammer / Plate Compactor. Clean Sand is spread in layer of loose depth of 350mm and water is sprinkled until saturated.

Materials | Free Full-Text | Multi-Objective Function Optimization of Cemented Neutralization Slag Backfill …

 · Tailings produced in the beneficiation of Carlin-type gold deposits are characterized by fine particle size and high mud content. When neutralized with wasted acid generated by pressurized pre-oxidation, the tailings turn to neutralized slag and perform as a novel backfill material. To understand the influential behavior of variable factors on the strength and its …

Site Preparation Earthwork, Excavation and Backfilling | Fill …

 · Fill material shall be placed in lifts not exceeding 200mm in loose depth. Fill material shall be placed in lifts not exceeding 100mm in loose depth for hand-operated compaction. Fill Placement and Compaction Inspection, Site Preparation, Earthwork Excavation and Backfilling, Backfill Soil Specifications, Earthwork in Construction.

Excavation and Backfilling of Soil

🕑 Reading time: 1 minuteEarthwork in excavation and backfilling of soil upto required depth is required for construction of foundation and trenches. The proper sequence of excavation and backfilling is required to optimise the process and prevent safety issues.

What Materials Are Used as Backfill in Construction?

 · This backfill material allows for great drainage while preventing erosion. Construction projects that typically use crushed rock or stone as a backfill material include driveways and dams. Fine-grained soil: This material is often used in construction projects that don''t require drainage. It''s easy to compact fine-grained soil, which ...

Backfilling In Building Construction | Method Of Backfilling

The backfilling should be started at the corners and ensure that the distribution of the soil is uniform so that sufficient lateral support can be arranged for the walls of your home. 5. By applying the excavator, fill in twelve inches of mixed materials on the sides of the area. Then, apply the rolling compactor to compress the soil and stone.

Backfill material

Blends from 30%-50% C Ash with GU are common. It is not unusual for fly ash blends to outperform straight GU cement in 28 day strengths. With respect to quality, fly ash has been used in concrete since the 1940''s and in Canadian hardrock mines, in backfill, since the early 1980s.

Australian Centre for Geomechanics | Conference Paper: Use of reactive MgO-activated slag in high sulphide-bearing lead-zinc cemented backfill

Zheng, J, Zhu, Y & Zhao, Z 2016, ''Utilization of limestone powder and water-reducing admixture in cemented paste backfill of coarse copper mine tailings'', Construction and Building Materials, vol. 124, pp. 31–36.

(PDF) EFFECT OF USING COPPER SLAG AS A BACKFILL IN …

 · Copper slag is obtained as a waste product after undergoing several industrial processes in Sterlite Industries. This slag is currently being used for many purposes like land filling, construction of abrasive tools, roofing granules, cutting tools

Building Damage from Expansive Steel Slag Backfill | Journal of the …

Building Damage from Expansive Steel Slag Backfill Carl B. Crawford, M.ASCE ; and Kenneth N. Burn Download ... Five years after construction some parts of the building were still heaving at a rate of 1 cm per yr. Swelling properties of the slag when exposed

Validating the Use of Slag Binder with 91 Percent Blast Furnace …

 · 3. The backfill shall be placed in lifts of 150 mm thickness and compacted in such a manner as to minimize any subsequent settlement of the ground surface. 4. The use of sand backfill compacted by flooding may be permitted, but this …

One-part alkali-activated slag binder for cemented fine tailings backfill…

 · In this study, a one-part alkali-activated slag (AAS) composed of ground-granulated blast furnace slag, desulfurized gypsum, and hydrated lime is proposed as alternative to cement for the production of cemented fine tailings backfill (CFTB), which is an environmentally friendly binder consisting of 93.72 wt.% industrial solid waste. Results show that AAS with 67.83 wt.% …

CN110776285A

The application provides an improved muck regeneration backfill material and a preparation method thereof, wherein muck is used as a main component, and is mixed with a proper amount of cement, water, fly ash and an early strength agent to prepare the improved ...

Backfilling in Foundation : Types and Procedure

After which, compress the soil and stone using the rolling compactor. You must repeat the same backfill procedure until the entire area is completely filled. Filling should be done in layers, each layer being of 15cm to 20cm. Each layer is watered and compacted with heavy rammers of wooden logs or steel. Under no circumstances black cotton soil ...

Coupled Thermochemical Effects on the Strength Development of Slag-Paste Backfill Materials | Journal of Materials in Civil Engineering …

In this paper, the coupled effects of sulfate (chemical factor) and curing temperature (thermal factor) on the strength development of cemented paste backfill (slag-CPB) that contains ground granulated blast furnace slag (slag) as a mineral admixture is studied.

Method Statement for Excavation Compaction and Backfilling

 · Safe angle and clearance of excavation: Method Statement for Excavation Compaction and Backfilling. The entire excavation slope shall be as per project specification of excavation specification. Angle =45° is applied to major soil strata found in the Plant site. Clearance of 1.0 meter from excavation top edge to barricade shall always be kept.

Backfill Construction of Steel-slag Mixture in National Gymnasium

LIU Jing-cheng(Beijing Urban Construction Group Co.,Ltd.,Beijing 100088,China) In order to meet demand of anti-seepage in National Gymnasium basement,large area steel-slag mixtures were backfilled,which recycles industrial solid waste, …

Wuxing Shijie Slag Backfill Engineering Company Profile

Find company research, competitor information, contact details & financial data for Wuxing Shijie Slag Backfill Engineering of Huzhou, Zhejiang. Get the …

BUILDING DAMAGE FROM EXPANSIVE STEEL SLAG BACKFILL

EXPANDING STEEL SLAG BACKFILL WAS UNEXPECTEDLY FOUND TO BE THE CAUSE OF VERTICAL MOVEMENTS OF THE FLOOR OF A BASEMENT- LESS BUILDING THAT RESULTED IN SIGNIFICANT DAMAGE TO WINDOW AND DOOR FRAMES. FIVE YEARS AFTER CONSTRUCTION SOME PARTS OF THE BUILDING WERE STILL HEAVING AT A …

Delayed consolidation of slag backfill for pillar recovery

Preliminary analysis of consolidated wall stability is reported from numerical modelling. This paper reports on preliminary research into delayed backfill consolidation of HBM&S slag backfill, a well graded gravel, using pressure grouting with particulate grouts. A physical and mechanical testing program is reported, which aimed to establish ...

DISCUSSION OF BUILDING DAMAGE FROM EXPANSIVE STEEL SLAG BACKFILL

THE RESULTS ARE DESCRIBED WHERE AN UNTREATED STEEL SLAG BACKFILL INCREASED IN VOLUME, IRREGULARLY, AND CAUSED CONSIDERABLE DAMAGE TO THE FLOOR AND WALLS OF A ONE-SOTRY INDUSTRIAL BUILDING. THE DISCUSSER WAS ASSOCIATED WITH TWO INVESTIGATIONS OF SIMILAR DAMAGE TO SIMILAR ONE …

Method Statement for Backfilling and Compaction Procedure-Earthwork

 · 3. The backfill shall be placed in lifts of 150 mm thickness and compacted in such a manner as to minimize any subsequent settlement of the ground surface. 4. The use of sand backfill compacted by flooding may be permitted, but this …

(PDF) Preparation of Cemented Oil Shale Residue–Steel Slag–Ground Granulated Blast Furnace Slag Backfill …

 · Preparation of Cemented Oil Shale Residue–Steel Slag–Ground Granulated Blast Furnace Slag Backfill and Its Environmental Impact April 2021 Materials 14(8):2052

Backfill Construction of Steel-slag Mixture in National Gymnasium

In order to meet demand of anti-seepage in National Gymnasium basement,large area steel-slag mixtures were backfilled,which recycles industrial solid waste, and creates social benefits and economic benefits.

A preliminary study of aeolian sand-cement-modified gasification slag-paste backfill…

Owing to the chemical inertness and poor particle size distribution (PSD) of coal gasification slag, activators must be added to ensure that the backfill material meets performance indicators. The research developed in this study presents a novel approach (aeolian sand-cement-modified gasification slag-paste backfill (ACGPB)) for the green exploitation of resources and …

What is Backfilling in Construction?

Backfilling is the process of using soil to support and strengthen a structure. The soil used for backfilling can be the soil removed during the excavation of foundations, ground bearing slabs or during any groundworks. It can be new imported soils, rocks and stone based on the structural requirements. Fig.1.

Types of Backfilling Materials Used in Building Construction

4. CLSM. CLSM is a self-compacting, flowable, low-strength cementitious material used primarily as backfill, void fill and utility bedding as an alternative to compacted fill. Conventional CLSM mixtures usually consist of water, Portland cement, fly ash or other similar products, fine or coarse aggregates or both.

LD slag

LD slag. The conservation of resources is more than simply a catchphrase for the voestalpine Group; it has long been an important part of the production process as a whole. An example of this is the use of slag, a byproduct of the LD steel making process, which is converted into construction materials for road building and civil engineering.

Backfilling Meaning| Backfilling Procedure & Importance of Backfilling …

 · Backfilling is an important part of the construction process. Backfilling happens after excavation when the soil is compacted back into the trench or foundation . It is used to help protect foundations, roadways, walkways, and other …

What Is Backfill In Construction? (Solved)

 · Backfill is the material that is dug from a bore and then used to fill in gaps and shore up the hole once it has been completed. In a two-pass lining system, backfill is used to fill the space between the casing and the conduit, pipe, and other underground services. Backfilling materials such as cellular grout and pneumatically delivered sand ...

Technology of Backfill Preparation Based on Cement-and-Slag …

 · Geological characteristics of ore and enclosing rock mass at Orlov deposit, including Severnoe body of Novaya ore shoot, are given. The ore is extracted by underground method, with slicing and roomand- pillar, and sublevel caving. The technology of backfill preparation based on cement–slag binder is evaluated. After lab experimentation, the rational compositions of the …

EFFECT OF USING COPPER SLAG AS A BACKFILL IN RETAINING …

currently being used for many purposes like land filling, construction of abrasive tools, roofing granules, cutting tools and rail road ballast material etc. Since copper slag has higher shear strength and density, it can be used as backfill material in retaining walls.