Differences Between Bitumen Penetration Test and Ductility Test
The ductility test and the penetration test are two different tests conducted to evaluate different properties of bitumen. While both tests provide important information about the characteristics of bitumen, they assess different aspects of its behavior. The ductility test measures the ability of bitumen to stretch or elongate without breaking.
Wood as a Construction Material
Wood is a versatile and widely used construction material that has been utilized for thousands of years. It offers several advantages and is still preferred in many applications today. Here are some key points about wood as a construction material:
Types of GeoTextiles and GeoComposites
Woven geotextiles have interlacing filaments or yarns in two perpendicular directions - the longitudinal (or warp) direction and the crosswise (or weft) direction. Woven geotextiles often have greater tensile strength in the warp direction than the weft. Whereas non-woven fabrics are formed by linking filaments using:
Gradation Of Aggregates | Types of Aggregate Grading
Types of Grading7•Dense-or well-graded aggregate–Has gradiationclose to the FWHA maximum density grading curve.•Gap-graded aggregate–Has only a small percentage of particles in the mid-size range.•Uniformly graded aggregate–Composed mostly of particles of the same size.•Open-graded aggregate–Contains only a small percentage of small-size particles.
Advantages of Natural Seasoning of Wood
There are many reasons for drying wood, and improving properties of wood to be used for construction is the main aim. Four main Advantages of Natural Seasoning of Wood include: Increased Stability, durability, Workability and strength while the weight and susceptibility of the wood to decay is reduced, thus, elongating its useful life.
When and Where to use the Different Types of Paints
Sealers are applied to unpainted surfaces to Stop stains and marks from bleeding through topcoats For oily or smokey stains leg on ceilings use an acrylic stain sealer For water stains use an oil-based sealer Already painted surfaces don't need a sealer unless stained Stop bare surfaces absorbing too much topcoat For new plasterboard use an acrylic wallboard sealer
What is the Purpose of Applying Paints?
Paints may be used for many purposes. The main purposes of paint are to provide: 1. Decoration to Interiors and Exteriors of a Building 2. Protective Layer 3. Ease of Cleaning They are used to enhance the interior and exterior of a building by adding pigments, lightness or darkness Reflective surfaces can be also be obtained Now a days textures are also added for different designs
Composition of Ordinary Portland Cement
The chief chemical components of ordinary Portland cement are: Calcium, Silica, Alumina, Iron. Calcium is usually derived from limestone, marl or chalk while silica, alumina and iron come from the sands, clays & iron ores. Other raw materials may include shale, shells and industrial byproducts. The chief compound which usually form in process of mixing:
Environmental Impact of Ordinary Portland Cement
There are lots of environmental impacts of Cement on our ecology. One of the major problems is emission of CO2 from the Cement industry. It is found that world yearly 1.6 billion tons production of cement covers 7% of carbon dioxide's yearly production. As CO2 is harmful for human health and also for the wild life. It causes many respiratory problems like asthma, bronchitis, and nasal infections.
Tests Applied on Bitumen in Roads for Quality Construction
Experience in using bitumen in engineering projects has led to the adoption of certain test procedures that are indicative of the characteristics that identify adequate performance levels. Some of the tests have evolved with the development of the industry and are empirical methods. Consequently it is essential that they are carried out in strict compliance with the
Applications & Uses of Building Stones in Civil Engineering
Stone being so important in the light of the above uses still is not widely used in construction. The reasons are: Stones are replaced by the increased use of RCC. Dressing of stones is time consuming Stones are not cheaply and conveniently available in plain areas. Marble is widely used in construction industry, for aesthetic purposes, beautification and strength. Nite, and
Properties of Stones and Tests Applied on Stones
The more compact grained and heavier a stone the harder it is. Due to alternate wetting and drying the resulting crushing strength can be reduced even up to 30-40%. Being dry stones allow more crushing strength than when wet. It is the ability of a stone to endure and maintain its essential and distinctive characteristics i.e. resistance to decay, strength and
Geological Classification and Characteristics of Stones
Sandstone, limestone, dolomite originally formed mainly in sea water, or lakes, from the remains of animals and plants, also from transportation and deposition of rock products. Geologically the stones can be classified as follows:.... A. Detrital is made from disintegrated pre-existing rock. B. Biogenetic is made from shells and other fossilized fragments. C. Chemical is made
Lab Report of Los Angeles Abrasion Test on a Given Sample
The Los Angeles test is a measure of degradation of mineral aggregates of standard gradings resulting from a combination of actions including abrasion or attrition, impact, and grinding in a rotating steel drum containing a specified number of steel spheres. The Los Angeles (L.A.) abrasion test is a common test method used to indicate aggregate toughness and abrasion
