Menu
Crushed concrete waste (CCW) is a by-product from building demolition and constitutes a principal component of municipal solid waste consisting of concrete, sand, , rock, metals and timber [12]. It is also generated from the demolition of Portland cement concrete elements of roads, runways, and structures during road
Get price
Then cast the three concrete mixes separately using the same cement and sand. Three different set of standard cubes were made. After 21 days and 28 days, these cubes were taken to be crushed in a concrete laboratory. The results showed that the well-graded Sample was the strongest because it took longest before it crushed.
Get price
The results of mix design indicate that crushed sand can also make as good a concrete as that made of natural sand.The compressive strength obtained is same as of normal mixes.In fact use of crushed sand will become inevitable in near future because of dwindling sources of natural sand.
Get price
Four grades of concrete after the Nigerian General Specification for Roads and bridges (NGSRB)-C20, C25, C30 and C35, is studied at different water-cement ratios for medium and high slump range. The concrete mixes are made from crushed granite rock as coarse aggregate with river sand as fine aggregate.
Get price
Aggregates directly influence the compressive strength of concrete. In a standard cubic metre of concrete, this amount of crushed rock forms a sturdy framework for the mix, while the size and shape of the aggregates will influence workability. 1 Cubic Meter of Concrete. 1m 3 of concrete = 150l water + 250kg cement + 700kg sand + 1200kg aggregates.
Get price
These include: sand, gravel, crushed stone, expanded shale or clay, volcanic ciders, scoria, pumice, etc. Various types of blocks are manufactured to be used for wall construction. Concrete masonry unit or concrete block is an important and common member in building construction in Ethiopia.
Get price
Plastic: Shredded Plastic is used in replacement of sand from the cement concrete to use the waste products from factory. Figure 1.1: Shredded Plastic Concrete mix: All mixes prepared are for M20 concrete and 0.45 water-cement ratio. Table 1.3 Materials for Shredded Plastic S.no Material .5% 1% 2% 4% 6% 1.
Get price
Specified proportions of each material such as 6% filler of size 0.075 mm, 66% fine sand of maximum size 5 mm and 28% crushed stone of size 5-16 mm with 3 to 9.5% bitumen of penetration grade 70/80 were mixed together at 163˚C.
Get price
Crushed Stone Aggregate is a broad category of coarse particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates. Aggregates are the most mined materials in the world. Crushed stone or Stone or angular rock is a construction aggregate.
Get price
Such large-scale use of concrete requires 5.4 Gt of limestone, for clinker and filler production, and 17.5 Gt of aggregate, such as sand or gravel 30. The demand for raw materials has led to...
Get price
4. Rapid Chloride Ion Penetration Test. Like water permeability test, this is also one of the tests to determine the durability of concrete. Three cubes shall be taken from fresh concrete delivered on site and tested at 28 days age. The test shall be done in accordance with ASTM C1202-97.
Get price
613. stone, aggregate, sand and fillers 6-9 614. cement 6-10 615. lime 6-10 616. lime treated materials 6-11 617. concrete 6-11 618. bituminous binders 6-12 619. bitumen emulsion 6-15 620. steel 6-17 621. testing of welds 6-18 622. paint for structural steel work 6-18 623. bricks 6-18 624. mortar 6-18 625. reinforced concrete pipes 6-18 626 ...
Get price
Groundnut shell has been used for cement replacement in concrete, a study in regard showed that the compressive strength of concrete mixes composed of quarry dust of 50% with 10% replacement of cement by groundnut shell found to be better than normal PCC [4]. The use of sawdust in concrete has received some interest over the past years.
Get priceBelow is an example of a sand to cement mix ratio recommendation from a cement manufacturer. Concrete - 1 part cement, 2 parts concreting sand and 3 parts 20 millimeter aggregate. Mortar - 1 part cement, 4 to 5 parts building sand. Alternatively, one can also use 1 part cement, 1 part lime and 4 to 5 parts building sand.
Get price
R.Mahadevi1 et.al, òAn experimental investigation on concrete paver block by using PVC plastic material, International Research Journal of Engineering and Technology (IRJET), Volume: 5, Issue: 03, [March- 2018] ISSN (Online):2349-9745; ISSN (Print):2393-8161 [1] Use of concrete paver block in road pavements is more common nowadays.
Get price
The standard document for cement specification in Nigeria is the NIS 444-1 Cement - Part 1: Composition, specifications and conformity criteria for common cements. This standard defines 27 products in the family of common cement that are grouped into 5 main types ( COREN, 2017 ). The five groups of cement we have in Nigeria are shown in Table 1.
Get priceWhere was limestone first found in Nigeria? It was and is still located in the middle and southwest parts of Nigeria. According to ngyab, only the southwestern areas are estimated to contain more than 30 million tonnes of this stone. There certain states where limestone is found in Nigeria, you are mistaken.
Get price
* Natural River sand are mined from the River mouth of the best places. The sand is procured from the Finest river beds that matches International Quality Standards. Natural River Sand Characteristics and Uses * Well Graded River Sand without Organic Impurities is Best for construction, be it for producing plaster mortar or to produce RCC.
Get price
The 7th day strength increases as the proportion of crushed over burnt bricks increases and the water content reduces, reaching the highest value of 35.0 N/mm2 . This corresponds to gravel - over burnt ratio of 2:2 and water - cement ratio of 0.4. Beyond this ratio of 2:2 (gravel to over burnt bricks), the strength decreases with ...
Get price
Roller compacted concrete (RCC) is a special type of concrete with zero or even negative slump consistency. In this work, it had aimed to produce an RCC mix suitable for roads paving with minimum cost and better engineering properties so, different RCC mixes had prepared i.e. (M1, M2, M3, and M4) using specified percentages of micro natural silica sand powder (SSP) as partial replacement of (0 ...
Get price
The crushed glass was made to pass through a stack of BS sieve sizes according to known British test standard procedures with interest in the sieve no 22. The glass particles were made to pass through the sieve until the glass passing becomes finer. This procedure was repeated until the crushed glass wastes were exhausted.
Get price
Use of Crushed Granite Fine as Replacement to River Sand. Use of crushed granite fines or crushed rock fines as an alternative to sand in concrete production was also reported 7. In Makurdi the capital of Benue state of Nigeria in West Africa the sole source of fine aggregate for concrete production is sand obtained from the bed of River Benue.
Get price
Some of construction wastes that have been found suitable for concrete production, through research efforts are: crushed concrete[6, 7, 8, 3, 9, 10, 11, and 12]. They are either being used as partial replacement of cement, or as partial replacement of sand.
Get price
There is a vast deposit of sand and gravel materials in Ile-Ife area, Southwestern Nigeria, which are being dug and used for concrete production but with no standards. However, the quality and mineral composition of the sand and gravel will depend on the rock types and climatic conditions in the area.
Get price
concrete grade types according to their mix. 1) nominal mix concrete. 2) design mix concrete. 1) nominal mix concrete:- it is simple type of concrete mix used in domestic and formation of low rise building, M5 M10 m15 M20 and M25 is used in domestic purpose for different type of residential house and formation of bass for foundation. ratio of in this grade of concrete has fixed ratio of sand ...
Get price
The compressive strength of concrete containing 15%, 20%, 25%, 50%, 75% and 100% crushed atili seed shell (CASS) as partial/full replacement and cured over a period of 28days showed no decline.
Get price
The bearing capacity of your soil will help you determine if you need a shallow foundation or deep foundation. Soil strength directly under the footing, where loads are concentrated, is crucial to foundation performance. You can get a pretty good idea of the soil bearing capacity in the trench bottom using a hand penetrometer.
Get price
The potentials use of crushed oyster shell (COS) and crushed palm kernel shell (CPKS) as partial replacement of fine aggregates in bituminous surfacing were investigated. Fine aggregate was partially replaced with COS and CPKS in proportions of 0%, 10%, 20%, 30%, 40% and 50% by weight of varying bitumen content from 3% to 9.5%. Marshall Stability tests were carried out in accordance with ...
Get price
(1) The percent by weight passing No 75μm sieve shall not be greater than 35% (2) The material passing 425μm sieve shall have a liquid limit not more than 35% and plasticity index of nit more than 12%
Get price
CEMENT - SAND - STONE relationship; In practice a 50kg of cement bag contains 2 head pan of cement; this means that if i have a plan to mix 1 bag of cement my mixing ratio would be: 1:2:4 = 1 bag of cement : 4 head-pans of sand : 8 head-pans of stone. 1:3:6 = 1 bag of cement : 6 head-pans of sand : 12 head-pans of stone.
Get price
Jul 6, 202210 Tons. ₦84,000. 20 Tons. ₦168,000. 30 Tons. ₦250,000. Be rest assured that the total cost of these aggregates will be affected by the location where they are to be taken to. In other words, cost of transportation inflates the whole price.
Get price
in Nigeria. This should halt importation of standard silica sand for mortar and concrete testing/geotechnical-geoenvironmental engineering research and the indiscriminate /presumptuous use of any sand from the various silica sand deposits in Nigeria. The Significance and goal of this research is the baseline spectroscopic and molecular
Get price
Japanese Standards Association (JSA) List your products or services on Engineering360 ... 81 335-838005 . Fax: 81 335-862014 Business Type: Service. Supplier Website JSA - JIS A 5005 Crushed stone and manufactured sand for concrete active, Most Current Buy Now. Details. History. Organization: JSA: Publication Date: ... Crushed stone and ...
Get price
Tanks and Silo can be constructed with concrete material or structural steel as required. Tanks and Silo come with a wide range in Cement Storage Silo, Tower Silo, concrete stave silo, low oxygen tower silo, bunker silo, bag silo, bins, sand and salt silo, and fabric silo, etc. Storage Tanks and Silo Solutions
Get price
given mass of concrete and the rest is occupied by hydrated water-cement past and air void. According to Neville (1996) aggregates are mineral filler material used in concrete. Material like sand, gravel, crushed rock, quarry dust, and other mineral filler are used as aggregates. It consists of fine and coarse aggregates.
Get price
Answer (1 of 4): Cost of concrete/cum depends on the location where you are doing production. Generally in India cost/cum for M30 grade varies from 5k-6.5k INR.
Get price
The research was conducted to study the possibility of utilizing the waste over burnt bricks abundantly available in most parts of Gwer-West Local Government Area of Benue State, particularly Naka, the Local Government capital, as coarse aggregates in structural concrete. Trial mixes were prepared using the crushed over burnt bricks known also as bats as coarse aggregates only, mixture ...
Get price
The standard aggregate for concrete is crusher sand as fine aggregate and crushed stones as coarse aggregate. However, many building owners who cannot afford the high cost of these aggregates usually resort to use of dug-up gravel (which in most cases contain large quantity of fines) and sand without any expert advice. In most
Get price
At 28 days hydration period, it shows that dune sand can be utilised in concrete production since the average compressive strength of concrete cubes made with dune sand (fine aggregate, i.e. 22.68N/mm2) is within the range stipulated in British Standard code of practice, BS 8110 (1985) (i.e. 20 - 40N/mm2) Keywords: concrete, compressive ...
Get price
Dec 22, 2020These values gotten from blocks suppliers within South Western Nigerian states were far behind the stipulated minimum standard for sandcrete blocks specified by Standard Organization of Nigeria ( 2000) of 2.5 N/mm 2 for individual block and 3.45 N/mm 2 for an average of five blocks.
Get priceCopyright ©2000- CCM MINERALS CO.,LTD.
