Limult Plaster Sand
Plaster Sand not only can be used to make plaster but it can also be used in a cement/sand/gravel mix to make concrete. Use Plaster Sand to set pavers, or fill in holes and low spots in your lawn.
Plastering is one of the most ancient building techniques. Evidence indicates that primitive peoples plastered their reed or sapling shelters with mud, thus developing more durable structures and more effective screens against vermin and inclement weather. More lasting and slightly materials in time replaced mud. Some of the earliest plastering extant is of a quality comparable to that used in modern times. The pyramids of Egypt contain plasterwork executed at least 4,000 years ago that is still hard and durable. The principal tools of the plasterer of that time were in design and purpose like those used today. For their finest work the Egyptians used a plaster made from calcined gypsum that is identical to plaster of Paris.
Plaster as a medium of artistic expression waned by the 19th century, when imitation and mechanical reproduction displaced this creative art. However, as a surface material for interior walls and ceilings and to a lesser degree for exterior walls, plaster remains in common use. It facilitates cleanliness and sanitation in building and is a retardant to the spread of fire.
which sand is best for plastering?
Sand is a naturally occurring granular material composed of finely divided rock and mineral particles. It provides the structure of plaster, and the quality of your sand can make the difference between success and failure.
Basically river sand are used for any plastering work. Generally, in any plastering work plasterers are used natural sand, crushed stone sand or crushed gravel sand. Though, there is a grading limit of sand which are used in plastering work. Other types of sand will also work, but it could be more expensive to use.
Limult Group sells quality plaster sand for strong housing construction_ thus providing for the nation. Feel free to visit our store at www.limult.com/shop to see more products that we make available for the people. For further inquiries, call us on +2347052446249.
Limult Engine Oil
The most essential thing that is used in a car service is the engine oil. The engine oil is the main lubricant that plays a vital role in the combustion cycle. Let’s have a look at all the things that this wonder liquid does to ease our drive:
- Engine oil reduces the friction among the parts of the engine at the various stages of the combustion cycle reducing the wear and tear of the internal parts of the engine.
- Engine oil performs the vital role of cleaning the sludge from the engine block which would otherwise result in a possible blockage.
- Engine oil helps neutralise the acids that are released at any stage of the combustion process from the fuel and oxidation of other lubricants.
- Engine oils also have anti-corrosion abilities which prevent the cylinder block from getting corroded.
So now we know that the engine oil is a vital element for our engine because it performs so many functions but do you know all engines can’t work with the same engine oil?
Yes, different engines require different engine oils to function and operate normally. The engine oils are recommended by car manufacturers based on some parameters of your car.
You ought to know the grade of engine oil being put inside your car to yield the best performance along with a healthy life span.
What are engine oil grades?
Engine oils have got different grades which are differentiated on the basis of their viscosities. Viscosity is the quantity expressing the internal friction of the fluid. Different engine oils have different viscosities at room temperature and also react differently to temperature changes. Selecting an engine oil grade for your car depends upon your car’s engine and also the place you are driving in.
What does 20W-40 mean in engine oil?
The engine oil grade consists of 4 characters. Here we explain the meaning of each of them:
- The first number is followed by a ‘W’. Here the W stands for Winter and represents how the oil will react to a cold start.
- In simple words, the number with the W represents the parameter of how the oil will flow in cold conditions.
- The smaller the number, the better will be the flow. For instance, a 5W-30 oil will have a better cold flow than 10W-30 engine oil.
- The number in the following part is the indication of how the finely the oil will flow at normal operating temperature once it is achieved.
- The 10W-30 engine oil will have a better flow than the 10W-40 engine oil at normal operating temperature.
Let’s take a look at the engine oil grades available globally:
- 0W-20 The 0W-20 oil is engineered to behave as a 0 weight oil at the starting temperature and a 20 weight oil when the engine will reach its normal operating temperature.
- 0W-30 The 0W-30 oil is engineered to behave as a 0 weight oil at the starting temperature and a 30 weight oil when the engine will reach its normal operating temperature.
- 0W-40 The 0W-40 oil is engineered to behave as a 0 weight oil at the starting temperature and a 20 weight oil when the engine will reach its normal operating temperature.
- 5W-30 5W-30 is the most commonly available end most extensively used engine oil in the Indian market. Most of the Indian car manufacturers recommend this.
- 5W-40 5W-40 is the fully synthetic engine oil which performs like a 5 weight engine oil when experiencing a cold start and 40 weight oil once the engine reaches normal operating temperature.
- 10W-40 10W-40 is the engine oil which offers a 10Weight performance in the cold starting temperature and 40 weight performance at the normal operating temperature of the engine.
Types of engine oils
Before you go ahead and purchase any engine oil, the first step you should know is, what type of oil your hatchback, sedan or SUV requires. It is essential to understand what goes into your car, as this is the deciding factor which ensures that the engine runs smooth, slick and efficient.
In general, there are three types of engine oil:
Mineral Engine Oil
The crudest form of engine oil. Mineral Engine oil is considered as the genesis that paved the way for modern engine oils. Mineral oils are refined petroleum oils which undergo treatment to function under a wide temperature range and are marketed significantly cheaper compared to the other two varieties of oils.
Nowadays, Mineral oils find their use in older vehicles and motorcycles.
The biggest drawback with mineral oil is that they offer little to no lubrication and protection against friction-induced heat. Also, they perform very inefficiently in colder temperatures and are more susceptible to breakdown during high-temperature uses.
Mineral oil also requires more frequent replacement as they last not more than 5000 kms.
Semi-Synthetic Engine Oil
This is one diplomatic engine oil. It positions itself right in between the territory of Mineral and Full Synthetic oil. As easy to say, Semi-Synthetic oil is a combination which offers the affordability of mineral and the performance of synthetic.
Semi-synthetic offer as much as three times the protection compared to mineral oils.
Semi-synthetic oil, also known as synthetic blend oil has a small amount of synthetic engine oil blended in with mineral oil to boost its properties without escalating the cost by much. The addition of synthetic oil enhances its viscosity and wear resistance at higher temperatures and stress. Synthetic-blend engine oils can also offer better performance at lower temperatures compared to mineral oils.
The thumbs down with semi-synthetic is that they do not offer the superior level of protection that a full synthetic does
Full Synthetic Engine Oil
The bleeding edge in engine oil technology. Full synthetic engine oil delivers excellent protection and aides in better fuel efficiency.
Synthetic oils go through extensive treatment in the lab to make them significantly superior to their counterparts. The process involves breaking down the mineral oil into the most basic molecules, which helps remove any undesired substances and impurities to a very high degree. The molecules of synthetic oil are also very consistent in their size and shape, offering superior lubrication. Full synthetic oil function at their optimum in both low or high temperatures, or under extraordinary stress.
The science behind manufacturing synthetic engine oil is an expensive and painstaking one, which makes synthetic oils significantly costly which is its only drawback.
Do you need best quality engine oil? Limult oil is what you need. Feel free to visit our store at www.limult.com/shop to see more products that we make available for the people. For further inquiries, call us on +2347052446249.
LIMULT KEROSENE
A REVIEW OF HOUSEHOLD USES AND THEIR HAZARDS IN LOW- AND MIDDLE-INCOME COUNTRIES
Kerosene is a flammable liquid mixture of chemicals that are produced in the distillation of crude oil. To produce kerosene, crude oil is distilled in a distillation tower in a process similar to that used to produce diesel and gasoline. It is a medium weight distillate in the refining process, and can be produced by distilling crude oil (here it is known as straight run kerosene) or by hydrocarbon cracking heavier petroleum (here it is known as cracked kerosene). The chemical composition of kerosene is fairly complex, and it is a complex mixture of paraffins (55.2%), naphthenes (40.9%), and aromatic hydrocarbons (3.9%). Kerosene tends to contain hydrocarbons that have anywhere from 11 to 13 carbons in the chains. Liquid kerosene fuels contain potentially harmful compounds, including hexane and benzene.
Since the mid-19th century, when it replaced the more expensive whale oil as a lighting fuel, kerosene (synonyms: kerosene, paraffin, paraffin oil, fuel oil no. 1, lamp oil) has become a major household, commercial, and industrial fuel. “Kerosene” started as a brand name but was later adopted (with a small “k”) as a general descriptor. In the first half of the 20th century, the prevalence of household kerosene lighting greatly reduced as electrification and availability of gas fuels spread, particularly in developed countries. However, in the developing countries of Africa, Asia, and Latin America, kerosene use for cooking and lighting remains widespread. Globally, an estimated 500 million households still rely on kerosene or other liquid fuels for lighting, corresponding to 7.6 billion liters consumed annually.
Produced originally from coal (“coal oil”), but later from the fractional distillation of petroleum oil, kerosene is a transparent liquid fuel with a mixture of hydrocarbon chains 6 to 16 carbon atoms in length. Although kerosene has numerous commercial and industrial applications (e.g., aviation fuel, general solvent), the focus of this article is on household uses, for cooking, heating, and lighting, in low- and middle-income countries. These lead to the most widespread exposures to kerosene and its combustion products.
Kerosene is commonly used in countries where solid fuels—biomass (wood, agricultural residues, and animal dung) and coal—are major household energy sources, often burned indoors without chimneys or smoke hoods.
Kerosene is sometimes advocated as an alternative cleaner fuel for cooking and is often used for lighting where electricity is not available. Some countries, such as India and Nepal, subsidize its retail price to stabilize in-country prices and make it affordable to the poor. However, there is substantial black market diversion of subsidized kerosene, as it mixes easily with the often more expensive diesel fuel, and it is often sold illegally in surrounding countries that do not subsidize it.
Uses
Kerosene is a major component of aviation fuel, making up more than 60% of the fuel. In addition, it can be used as an oil in central heating systems and can be used as a cleaning agent. Although the use of kerosene in many places has decreased over the years as a result of improved access to electricity and natural gas, it is still used extensively in the developing world for cooking, heating, and lighting. Kerosene cooking is extensive in developing countries, especially among urban populations. Kerosene is often seen as a good alternative to solid fuels, biomass, and coal and thus kerosene lanterns are used in places where access to electricity is not available. It is estimated that globally 500 million households use fuels such as kerosene for lighting.
Health Risks
The use of kerosene as an oil in heaters can be dangerous and because of that it is not used frequently. When operating, kerosene heaters can cause degradation of air quality inside a home while producing toxic and carcinogenic gases. Because of this, kerosene is not actively used in home heating in most developed countries.
In developing countries, the widespread use of kerosene comes with numerous different issues. Hazards of kerosene use include poisoning, fires, and explosions. As well, some kerosene lamps emit fine particulates, carbon monoxide, nitric oxides (NOx), and sulfur dioxide when burned. These by-products may reduce lung function and increase risks of asthma and cancer. Although kerosene is still a safer option in many cases than using solid fuels.
Justifiably, pollution from solid fuels has provoked efforts to find alternative energy sources or ways of burning biomass more cleanly. Least polluting alternatives at the household level are solar power and electricity. Gaseous fuels, which burn with higher combustion efficiency are the cooking fuels of choice in most countries. Biogas made from anaerobic digestion of animal dung is used where conditions are suitable.
Limult Group sells kerosene for your home needs thus providing for the nations. Feel free to visit our store at www.limult.com/shop to see more products that we make available for the people. For further inquiries, call us on +2347052446249.
BRICKS BY SHAPES
In the history of professional construction practices, brick is one of the oldest of all building materials. It is also arguably the most durable since there are brick walls, foundations, pillars, and road surfaces constructed thousands of years ago that are still intact. Today, bricks are most often used for wall construction, especially as an ornamental outer wall surface.
Brick Defined
Officially, the term brick is used to denote a building unit made of shaped clay, but in modern times it is used to refer to any stone- or clay-based building unit that is joined with cementitious mortar when used in construction. Typically, bricks are about 4 wide, 8 inches long, with a variety of thicknesses. Larger stone- or clay-based building units of the type used in foundations are usually called blocks.
How Bricks Are Categorized
There are several ways that brick can be categorized. For example, you can divide brick into the types used for facing (exposed and visible on the exterior of a structure) vs. backing bricks (which are used structurally and are hidden from view). Another means of categorizing brick is according to how they are manufactured: unfired (brick that is air-cured) and fired (brick that is baked in ovens to harden it). Bricks can be also categorized according to their typical use: common bricks or engineering bricks. For purposes of residential construction, it is usually common bricks that are of most interest, since engineering bricks are more often used in civil engineering projects, such as road or bridge construction, or sewers construction.
Bricks can also be categorized according to their shape. Some common shapes include:
- Brick veneers: These bricks are thin and used for surface cladding.
- Airbricks: These bricks contain large holes to circulate air and lessen weight. They are used on suspended floors and cavity walls.
- Perforated bricks: These bricks contain many cylindrical holes drilled throughout the brick. They are very light in weight.
- Bullnose brick: These are bricks moulded with round angles.
- Paving bricks: These bricks contain a good amount of iron. They are used in underfoot paving applications.
- Capping bricks: These bricks are used to cap the tops of freestanding walls.
- Hollow bricks: About one-third of the weight of the normal bricks, these are used mostly in partition walls where load-bearing is not required.
The African hut
A hut is a building of a lower quality than a house (durable, well-built dwelling) but higher quality than a shelter (place of refuge or safety) such as a tent and is used as temporary or seasonal shelter or in primitive societies as a permanent dwelling.
The hut in the 21st century
Although huts still exist in poor, mostly rural Africa, one could safely argue that they are a thing of the past; that these structures have been overtaken by technology and modernization. However, due to their benefits, like natural air conditioning, serenity and tranquility, the hut has found its way into the modern age.
Huts are not only environmentally friendly but also economically sound. A grass-thatched house is cool and when you drink water kept in a pot, it is as cold as water from the fridge,
The re-emergence of the hut stems from the increasing temperature in Africa due to global warming. In order to attract clients, hotels and luxury pubs have adopted a grass-thatched style for their cottages and bars. Huts are very comfortable. This is mainly because of the building materials used. Both clay and grass are good insulators, but they are porous and allow a free flow of air.
It is often very hot during the afternoons in Africa. The hut remains cool and is a welcome resting place. At night, when temperatures fall, the hut retains its daytime temperature, keeping the inhabitants warm.
The question of whether the re-appearance of huts in Africa and beyond is a positive development or a sign of Africans not letting go of their “primitive” past is indeed a question that can be debated.
Automatic Sliding Doors
Automatic sliding doors are designed with attractive framing and sleek styles to complement any entry. Glass sliding doors are ideal when it comes to unobstructed views and allowing natural light into a building.
Where possible for building entrances, use automatic sliding doors activated by a motion detector. These doors also provide an audible cue for people impacted by blindness to the presence of the entrance. Automatic sliding doors don’t impede traffic flow in any way, don’t require guardrails for protection (as automatic non-sliding doors do) and are universally accessible.
If there’s an emergency or power loss, it should be possible to open automatic sliding doors in the direction of exit using a manual force of 66 N or less.
Overhead motion activated sensors are preferred over floor-pad door activation sensors, as the floor-pads are prone to malfunction in winter. If floor-pad door activation sensors are used, they should be installed with the surface of the pad no more than 13 mm above the surrounding ground surface.
If push buttons are used for automatic swing-type doors, each button should open only one door. Push buttons should never open both leaves of a pair of doors. A person should be able to open or stop an automatic swing-type door with a force of 66 N or less.
Where used, push-button or push-plate activated power door operators should be consistently located at all entrances. They should be colour contrasted to the background environment to enhance visibility for people impacted by blindness. Position push buttons/plates so that the opening door doesn’t hit the person opening the door or their guide dog.
Characteristics and Advantages
(1) Automatic sliding door mechanism are available in either single sliding, bi-parting or telescopic configurations.
(2)Modularization design to make installation and adjust more easy;
(3)Adaptable to all types of door frames;
(4)Motor power control system with automatic reversal for user safety;
Automatic Sliding Door System using:
1) 10mm Toughened (Tempered) Frameless Glass Door with Logo Design on Door
2) 5mm Aluminium Framed Glass Door
* Door sizes can be customized
More Powerful
Three roller carriage ensure the door can’t derail from the profile.
European installation design promise its smooth and stable operating.
Rubber damping-washer, advanced synchronous toothed belt and alloy guide roller make sure there is few noise when it works.
Hands free operation is actuated by sensor activation or other automatic activation.
The various operating modes “ Lock, Exist Only, Permanent Open, Half Open, Automatic” can be selected via remote activation ( remote controller).
Unique design remote controller.
When you don’t need to use remote controller, you can power off to increase its working life
Safe Operation
Safety beam sensor protection
Auto-reverse when it meets obstruction. The impact force is less than 67N.
Easy to open by hand after power fails.
It can open at least 80% within 3s after activation by activators if opening width is up to 2000mm.
Battery works after power fails. Door open and keep open or works normally with battery power.
Fuse protection