What Is Asphalt Concrete? Asphalt concrete, also known as asphalt or blacktop, is a composite material made up of aggregate such as sand and gravel bound together by asphalt binder. It can be laid in layers on roads, driveways and parking lots as a cost-effective alternative to concrete. Asphalt concrete is low-maintenance and can resist […]
What Is A Hollow Core Slab Construction Method? A hollow core slab, also called a voided slab or a concrete plank, is a precast piece of prestressed concrete that is commonly used in the construction of floors in multi-story apartment buildings. It is particularly popular in countries where precast concrete is preferred for home construction, […]
What Is The Process Of Mine Reclamation? Mine reclamation is restoring a mined area to its previous natural state or acceptable and safe land use while preserving its long-term productivity. The process may include activities such as soil sampling, soil stabilization, and replacement, topsoil replacement, revegetation with native plants and trees, construction of levees and […]
What Is Meant By Roller Compacted Concrete? Roller Compacted Concrete (RCC) is a type of concrete that is prepared with basic ingredients such as gravel or crushed stone, sand, cement and water, which are mixed together to form a stiff asphalt like material. This material is then mixed with a mechanical compaction device known as […]
What Is A Pavement Condition Index (PCI) The Pavement Condition Index, also known as PCI, is a numerical value between 0 and 100 used to grade the condition of pavement section surfaces. The PCI, or Pavement Condition Index, is a tool used by various industries, including transportation civil engineering, and asset management, to assess the […]
What Is Cement Clinker? Cement clinker is a solid material made during the production of Portland cement. It is formed by heating a mixture of raw materials, including limestone and clay, to high temperatures in a kiln. The resulting clinker consists mainly of four minerals: alite, belite, tricalcium aluminate and calcium aluminoferrite. These minerals are […]
What Is Longitudinal Cracking in Pavement? Longitudinal cracking is a type of pavement distress that occurs when cracks form along the direction of traffic flow. This type of cracking often happens as a result of temperature fluctuations, overloads or vibrations due to high-speed traffic and occurs when asphalt layers fail to bond correctly. Longitudinal cracks […]
What Is Alligator Cracking In Asphalt Roads? Alligator cracking, also known as crocodile cracking, is a type of surface failure characterized by interconnected cracks forming in asphalt pavement. It is caused by fatigue or stabilization from the weakened subgrade beneath it and water seeping into the pavement. Alligator cracking can be minimized through preventative maintenance […]
What Is Meant By Polymer Concrete? Polymer concrete is a composite material that uses a binder made of polymer resin and filler materials such as sand, crushed stone, or gravel. It is similar to traditional concrete but is much more durable and flexible due to the addition of the binding agent. Polymer concrete has increased […]
What is Asphalt Stripping? Asphalt stripping is essentially the opposite of asphalt raveling. Rather than the top layer disintegrating and exposing the lower layers, it is the lower layers that fall apart first, weakening and damaging the upper ones. More specifically, aggregate materials and asphalt binder at the bottom of the asphalt layer start to […]