Cement

1. At Marino Rocks there is a substantially difference between the rock types on the ‘beach’. Some of these are grain size, age, complexion very common rock types that can be found at Marino Rocks include: sandstone and siltstone. Sandstone is a sedimentary rock composed of sand-sized grains of mineral, hence why its called ‘SAND-stone’. It also contains a cementing material that binds the sand grains together. This is in contrast to siltstone, silt is a size term used for material that's…

Sometimes there may be a need to build a retaining wall after an asphalt paved surface has been installed. If you’re considering building a retainer wall adjacent to, or top of an existing asphalt surface there are some important things to consider before you begin building the wall. Here is how to make sure you have a sturdy wall that does not compromise your asphalt. Retainer Walls on top of Asphalt vs. Concrete Surfaces Asphalt pavement is a common material used for parking areas and…

Institution/Business Dangote Cement PLC Purpose of Institution/Business Dangote Cement PLC is one of the companies that constitute the Dangote Group; it is a Conglomerate and it owns diverse businesses. Dangote Cement PLC was established in 1981 by Aliko Dangote who also serves as the chairman of the Board. The company currently has three cement production plants in Nigeria. Dangote Cement PLC started as a trading business in Nigeria with the sole purpose of importing bagged Cement and other…

Introduction Although the Romans did not invent the arch, their development of it enabled them to support a large amount of weight and as a result to build larger and more glorified buildings. They wouldn’t be able to indulge, though, their architectural ambitions having not invented the concrete. Both concrete and the arch had a lasting impact on architecture throughout the world. This essay will examine the development of the concrete and arch, their importance of each in the life of Rome, as…

How to Prevent Cement Roof Tiles Surface from Deterioration? Roof cement tiles are durable materials that can be used for roofing, but just like other materials of its kind, they too are actually prone to deterioration. Over time, these tiles develop structural defects and these defects only show up many years after they are installed. The problem is, not all defects that develop in cement tiles can be rectified. That is why it is important to know how to prevent cement roof tiles from…

of material by (the cement or binder) that fills the space between the aggregate particles and pastes them together. Depending on what kind of binder is used, concrete can be divided into nonhydraulic cement concrete (made of nonhydraulic cement), hydraulic cement concrete (made of hydraulic cement), asphalt concrete (made of asphalt), and polymer concrete (made of polymer). In fact, the concrete is the oldest used in human history. as early as around 6500 B.C nonhydraulic cement concretes were…

Sidewalks play a very important role when it comes to the safety and convenient transit of pedestrians. In this document you will learn how to pour and finish concrete into an area that has already been prepared. The dimensions of the slab we will be working with are, 5ft by 5ft by 4in deep. The sidewalk you will be completing will be in a standard neighborhood. It is best to start this task in moderate weather. The bill of materials will consists of bags of Quikrete, wheel barrel, water source,…

It is vital to understand the difference between cohesive and non-cohesive subsoils as described in the assignment scenario. Non-Cohesive Non-cohesive subsoils are sandy in nature and they present less of a problem for building on. They are composed mainly of sand and gravel, and they are closely compacted together which means that they are not affected by water. Therefore, their load bearing capacity does not change with the various seasons, summer or winter, drought or flood, it makes no…

Risk assessment of cement industry Risk: Risk is the possibility of gaining or losing something of value. Risk Assessment: An organized process of assessing the possible risks that may be involved in an expected activity or job Why is risk assessment important? Risk assessment is very important as it play vital role in an occupational health and safety management plan. It helps to: • Generate attentiveness of hazards and risk. • Identify who may be at risk (e.g., workers, sweepers, outside…

RESULTS AND DISCUSSION 3.1 Water demand and workability of M-S-H binder system 3.1.1 Optimization of superplasticizer M-S-H binder contains high content of very fine silica fume particles and therefore requires much higher water demand than Portland cement (PC) for workability (Zhang et al (2009)). Also, the reactive magnesium oxide particles were found to have cells lattice structure and therefore require higher water demand than PC (Eubank, 1951). For those reasons, tests with…