1. Size of concrete specimens for compression strength test
Concrete cubic specimen: 150X150X150mm, 100X100X100mm, 200X200X200mm
Cylindrical concrete specimen: diameter 150X300mm, diameter 100X200mm, diameter 200X400mm
2. Brief introduction of concrete compressive strength test procedure
1) Placing the concrete specimen---place the test specimen on the lower bearing block. Carefully align the axis of the specimen with the center of thrust of the spherically seated block.
2) Apply the load continuously and without shock until the specimen fails and record the maximum load carried by the concrete specimen during the test. Note the type of failure and the appearance of the concrete.
3.Relative test method
GB/T 50081 standard for test method of mechanical properties on ordinary concrete
ASTM C39 standard test method for compressive strength of cylindrical concrete
ASTM E74 practice of calibration of force-measuring instruments for verifying the force indication of testing machine
4. Specifications for concrete compressive strength testing machine
Max. capacity: 3000KN( lower or higher capacity can make to order)
Grade of testing machine: grade 1
Distance between upper and lower compression platen: 320mm
Stroke of piston:50mm
Size of upper and lower compression platen:375X375mm
Weight :about 900kg
Focus-6200 products are kind of non-hardening and self-adhesive waterproof sealing butyl tapes. The materials are weathering resistance and fully accommodate to the surface that it attached to, with effective life up to 20 years.
Main Specification
(Customized size is acceptable.)
2mm thickness * 20mm width * 20mm roll
length 2mm thickness * 30mm width *20mm roll length
Main Color - black, grey, white
Technical Data
Product Series FOCUS-6200 Series
Application Construction Industry
Elongation - 500%
Heat Resistance 90, no flowing within 2h
Low Temperature Flexibility 40, no crack on surface within 24h
Peel Strength 25N/cm
Tensile Strength 250KPa
Anti UV non-hardening and no cracks within in 2000h
Corrosivity Non-corrosive to galvanizedsheet, aluminum sheet and coppersheet
Advantages
* Never hardening, maintain good waterproofing property with weathering resistance performance.
* Excellent performance in waterproofing and sealing.
* Good anti-aging performance effective life up to 20years.
* Easy to apply.
Applications
* Provide waterproof and sealing protection forsteel
structure construction.
* Provide waterproof and sealing protection for door joints, window joints,roofs
and air-ducts. Provide waterproof and sealing protection for sunshine rooms, light plate rooms and thermostatic chamber.
* Provide repair function for leaks on surfaces of metal/plastic/glass/concrete.
English name:Â Calcium Nitrite
Molecular formula:Â Ca(NO2)2
Molecular weight:Â 132
CAS NO. 13780-06-8
HS CODE:Â 28341000
UN NO.: 2627 5.1 type oxidizing agent
Properties:Â White powder without crystal water. It is tasteless and toxic. Easily in water and presents light yellow solution.
Specifications:
Item Superior grade First grade Second grade
Calcium Nitrite[Ca(NO2)2Â as dry basis]% 94 92 90
Calcium Nitrate[Ca(NO3)2Â as dry basis]% <4 <5 <6
Calcium hydroxide[Ca(OH)2Â as dry basis]% <1.0 <1.0 <1.0
Moisture % <1.0 <1.0 <1.0
Water insoluble matter % <0.6 <1.0 <1.0
Uses:
1. Antifreezing agent.
2. Inhibitor of steel in concrete.
3. Can prepare compound early strength agent.
Packing 25/50/1000KG woven bag lined with plastic or according to customer's requirements.
Commodity: Ammonium nitrate porous prills
1.Production of granular porous ammonium nitrate for industrial use and agricultural granular ammonium nitrate. Products with low moisture content, not easy to cake; high compressive strength, not easy to break; high oil absorption rate. Ammonium nitrate content is more than 99%, the appearance is white granular crystals, no impurities visible to the naked eye.
2. Purpose:
Explosive material: granular ammonium oil explosive is made by mixing porous ammonium nitrate with raw oil. Its speed can reach more than 3 200 m/s. This explosive has strong explosive power, safe and reliable use, low price, cost saving, and can usually reduce the cost by 20%-40%. At present, this kind of explosive has been widely used in mining, construction, railway and highway construction, agricultural and water conservancy construction and national defense and other fields.
Micro silica also known as fume, is an amorphous (non-crystalline) polymorph of silicon dioxide, silica. It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production and consists of spherical particles with an average particle diameter of 150 mm. The main field of application is as pozzolanic for high performance concrete because of its extreme fineness and high silica.
Applications :
Silica is added to Portland cement concrete to improve its properties, in particular its compressive strength, bond strength, and abrasion resistance. These improvements stem from both the mechanical improvements resulting from addition of a very fine powder to the cement paste mix as well as from the pozzolanic reactions between the silica fume and free calcium hydroxide in the paste.
Advantages :
Addition of silica also reduces the permeability of concrete to chloride ions, which protects the reinforcing steel of concrete from corrosion, especially in chloride-rich environments such as coastal regions and those of humid continental roadways and runways (because of the use of deicing salts) and saltwater bridges.
Kaolin uses are multiple and diverse. Kaolin are used as functional filler, extender, ceramic raw material and pigment because of its whiteness and fine particle size. Kaolin also hold importance as raw material in refractory applications, concrete, rubber and fiber glass manufacturing. We, as a Kaolin Exporter welcome any size of international orders from Middle East and other countries.
Applications:
Paper:
Kaolin used as a coating pigment and as a filler to replace fiber. It possesses desirable optical properties.
Concrete:
Kaolin helps to improve strength and durability of concrete. When added to concrete mix, reacts with free lime released during cement hydration to produce additional cementitious material, resulting in an improved high performance concrete.
Plastics :
Kaolin is widely used as filler in the plastics industry because of its inert chemical nature and its unique size, shape and structure.
Agriculture :
It is used as a carrier and diluent in fertilizers, pesticides and related products. It is suitable as carrier because it aides the retention of the formulations on the plant.
Rubber :
It is commonly used as functional filler in rubber applications. While Kaolin improves overall performance for Rubber in general, different types of white pigment play specific roles in rubber application.
Paint :
Kaolin used as an extender in paints. It reduces the amount of expensive pigment such as Titanium Dioxide. It assists with desirable rheological properties that help maintain proper dispersion and provide bulk to the product.
Ceramic :
Kaolin improves whiteness and brightness of ceramic body. Good plasticity, good shrinkage, low water absorption and casting rate are also very important properties of kaolin.
Dolomite a common sedimentary rock-forming mineral that can be found in massive beds several hundred feet thick. They are found all over the world and are quite common in sedimentary rock sequences. These rocks are called appropriately enough dolomitic limestone.
Applications:
- Dolomite is chosen for many construction and building product applications due to its increased hardness and density.
- Asphalt and concrete applications prefer dolomite as filler for its higher strength and hardness.
- Dolomite also finds use in a number of applications as a source of magnesium such as glass and ceramics manufacture, as well as a sintering agent in iron ore
- Palletization and as a flux agent in steel making.
- Farmers use dolomite for agricultural pH control.
- The chemical industry uses the mineral dolomite in making magnesium salts including magnesia, magnesium oxide (MgO), which is used in pharmaceuticals.
This is a pasting gum powder we export is used in carton and corrugated boxes. The molecules are small and have a consistent viscosity. It is known for its excellent adhesive property, high strength film property, best tackiness, wide range of water solubility and fast drying property. High solids ensure higher compress strength, stiffness and superior bonding.
can supply REBARS as per below: -Size: 6mm to 50 mm -Length: 6 meters up to 16 meters -Packing: Once folded bundles available.
hese corrugated steel bars are used as tension devices in the construction of concrete slabs and walls, as well as decorative/ornamental grille work. When used in concrete constructions, these help to strengthen and hold concrete when it is compressed, and come in a wide variety of sizes to fit various building construction needs. At ARC. AVAILABLE IN 3/8 (10mm), 5/8 (16mm), (20mm), (12mm), 1 (25mm) and 1 (32mm)
Natural Rubber SVR3L have good resilience, abrasion and surface friction properties and excellent compression set. It has low hysteresis and rolling resistance with high fatigue resistance and remains flexible at low temperatures. Natural rubber SVR3L has poor resistance to oil, sunlight and ozone and limited thermal capability.
Natural rubber SVR3L is superior tear strength and excellent resistance to heat buildup continues to make it a favored ingredient for high-performance tires for race cars, trucks, buses and aircraft. Other applications include tank lining, engine mounts, seals, vibration dampening and diaphragms.
Natural Rubber SVR3L have good resilience, abrasion and surface friction properties and excellent compression set. It has low hysteresis and rolling resistance with high fatigue resistance and remains flexible at low temperatures. Natural rubber SVR3L has poor resistance to oil, sunlight and ozone and limited thermal capability.
Natural rubber SVR3L is superior tear strength and excellent resistance to heat buildup continues to make it a favored ingredient for high-performance tires for race cars, trucks, buses and aircraft. Other applications include tank lining, engine mounts, seals, vibration dampening and diaphragms.
The digital compression testing machine with dedicated universal computer software for reading purpose, self operating & monitoring has been designed to meet the need for a simple, economic and reliable means to test concrete / cubes etc. For its compressive strength. The design expressive of simplicity, both of construction and operation, makes the machine easy to use and maintain. The unit is compact, making it useful for site and
Laboratory applications.
Features:
•High stability four pillar load frame.
•Each frame tested for stability and alignment to avoid tension failure during a test and to ensure centre loading.
•A precise large diameter spherical upper platen for optimum results.
•Motorized hydraulic power pack or pumping unit with rapid approach and automatic over load protection.
•Comes standard with safety guards on all four sides
The complete unit comprises a loading unit which is of four pillar model construction having a cross-head with a spherical seated platen. The lower platen is attached to the top of the piston. The loading capacity is of 2000 kn, cubes up to 200 mm & cylinders up to 150 mm dia x 300 mm height can be tested using the appropriate spacers.
Pumping unit attached to the loading unit by high pressure hydraulic flexible hose pipe. The pump facilitates rapid approach of the platens for daylight closure and also provides comprehensive control over the application of load.
A control valve provides fine control over the loading rate for accurate pacing.
Maximum load is held and retained for approx. 15 min, unless cancelled, using the panel mounted reset switch. Pace rate set for running the test can be maintained manually.
200 tones in different models. Portable models are very convenient and useful for site use where carrying frequently the specimens for testing in a standard laboratory is inconvenient and uneconomical. With special attachments, the machines can also be used for bricks, hallow or solid concrete blocks, using appropriate capacity machine. In general compression testing machine consists of a load frame with suitable platens and a pumping unit with pressure gauge, either hand operated or electrically-cum-hand operated. Load frame and pumping unit are connected by pressure pipes.
rLDPE repro Yellow pellets from post-consumer & post-industrial films.
The material is shredded and washed through a wash plant before it is processed through degassing and very fine filtration to produce high purity reprocessed resin.
r-LDPE yellow is a blown film grade and exhibits excellent processability and good balance of
toughness, strength and stretch properties. This grade is also be suitable for profile and sheet extrusion
Packing: 1000kg bulk bag
Melt flow rate (190�?C / 2.16kg) 0.5 �± 0.5
Density 0.92 �± 0.015
Measured on blown film of 25 �µm and BUR of 2.5 at external testing facility.
rLDPE Yellow is typically extruded at a melt temperature around 190Ã??C (min 180Ã??C, max 240Ã??C).
Mesh filters: 150 on the laser filter and 120 on the piston filters.
ABS Regrind ,Yes No Fr, NO pc abs, no iron, no circuit etc
ABS has excellent mechanical properties, excellent impact resistance and can be used at extremely low temperatures. ABS has excellent wear resistance, good dimensional stability and oil resistance, and can be used for bearings under medium loads and speeds. ABS's creep resistance is greater than PSF and PC, but smaller than PA and POM. The flexural and compressive strength of ABS are poor in plastics. The mechanical properties of ABS are greatly influenced by temperature.
ABS is flammable material and belongs to HB class according to UL94 standard. ABS burns quickly when ignited, and emits a lot of toxic gases and black smoke, which is not conducive to practical application. With the advancement of science and technology and improving the quality of life, everyone's safety awareness is getting stronger. The domestic and foreign countries have put in place strict fire and flame retardant requirements for plastic materials used in automobiles, construction, home appliances, office supplies, etc., and made corresponding technology. Standards and specifications, so research on ABS flame retardants has a very important meaning.
MATERIAL: ABS Regrind ,Yes No Fr, NO pc abs, no iron, no circuit etc
CATEGORY: ABS
TYPE: Regrind
SPECIFICATION: Regrind Abs from post consumer materials ,Yes No Fr, NO pc abs, no iron, no circuit etc. Qty per month 1 container 26 mt
Origin: Bangladesh
LOADING WEIGHT: 26 Ton
FOB (USD/Ton): 750$ - 950$
Packaging: Jumbo Bag
Est. Shipping Time: 15, 30, 45 days
Specification: "rLDPE repro Yellow pellets from post-consumer & post-industrial films.
The material is shredded and washed through a wash plant before it is processed through degassing and very fine filtration to produce high purity reprocessed resin.
toughness, strength and stretch properties. This grade is also be suitable for profile and sheet
extrusion
Packing: 1000kg bulk bag
Melt flow rate (190�?C / 2.16kg) 0.5 � 0.5
Density 0.92 � 0.015
Measured on blown film of 25 �m and BUR of 2.5 at external testing facility.
rLDPE Yellow is typically extruded at a melt temperature around 190Ã??C (min 180Ã??C, max 240Ã??C).
Mesh filters: 150 on the laser filter and 120 on the piston filters."
POM Regrind from zipper Teeth, industry lump, industry runner
Definition of POM resin (polyformaldehyde resin): polyformaldehyde is a linear polymer without side chain, high density and high crystalline properties. According to different chemical structures in the molecular chain, there are two types of homoformaldehyde and copolymers. of both types of polyformaldehyde density, high crystallinity, melting point, but thermal stability, the treatment temperature range is narrow (about 10oC), slightly lower in acid and alkali stability; The density of formaldehyde, melting point, strength and copolymer is lower, but good thermal stability, not easy to decompose, wide range of treatment temperature (about 50oC), acid and alkali stability are good . Plastic has excellent all-round performance. Good physical, mechanical and chemical properties, especially with excellent friction resistance. It is commonly referred to as steel or strip, which is the general engineering plastic third. Suitable for reducing wear on parts, transmitters, chemicals, tools and other parts.
One of the synthetic resins, also known as polyformaldehyde resin, POM resin and steel, etc. This is a kind of white or black plastic resin with high hardness, high steel and high wear resistance. Used for gears, bearings, auto parts, machine tools, tools, etc.
MATERIAL: POM Regrind from zipper Teeth , industry lump, industry runner
CATEGORY: POM
TYPE: Regrind
SPECIFICATION: from zipper Teeth , industry lump, industry runner,Qty per month 52 mt
Origin: Bangladesh
LOADING WEIGHT: 24 Ton
FOB (USD/Ton): 650$ - 850$
Packaging: Jumbo Bag
Est. Shipping Time: 15, 30, 45 days
