Civil engineering knowledge

Best Uses for Solvent Cement https://askciviltech.blogspot.com/2020/07/cement-plaster-or-gypsum-plaster-which.html   Solvent cement can be used in various ways when you are working on a pipeline at home. When you are working with PVC plumbing pipes in your home, you can use this cement to fix new fixator connections, new pipes, or even some types of plumbing pipe damage. This cement is not suitable for use with iron or copper water pipes; However, this can make it much easier to work with ABS or PVC plastic water pipes. Here are some ideas about using solvent cement effectively. Repair loose pvc pipe fittings and connections If you have a drainpipe located under a kitchen, bathroom or laundry sink that has worked its way up, and the drainpipe is made of PVC plastic, you can easily use solvent cement to fix the problem Huh. One reason that solvent cement does not adhere properly to PVC pipe or fittings is the lack of a good PVC primer. So, before you use solvent cement to fix the loose

  CONCRETE POURING IN RAIN https://askciviltech.blogspot.com/2020/06/knowledge-of-cement-concrete-behaviour.html CONCRETE POURING:- Water is a major component of all concrete. which is mixed with cement and causes it to hydrate and regain strength.  After concrete is laid water can do more harm than good as driving rain. Pouring concrete in the rain can compromise its strength, leading to increased tendency to dust and scaling. Once damage is done. it can be difficult to fix and will often ruin the appearance of the finished surface. Do not let it rain on your parade. Here are some tips to prevent and prevent rain-damaged concrete. Advice for pouring concrete in the rain Despite modern weather forecasting techniques and radar maps, an unexpected rain shower can develop without warning, especially during the hottest months of the year. If rain is in the forecast, you should postpone pouring a large concrete until conditions improve. Even if rain is not predicted you should always be pre

Cement Plaster vs Gypsum Plaster https://askciviltech.blogspot.com/2020/06/knowledge-of-cement-concrete-behaviour.html     The rich contribution of plaster to the beauty and preservation of the surface of the walls need hardly be debated. The most popular types of plaster used for building construction are cement and gypsum plaster. This ointments are used for external and internal plastering of the building.  They form a protective layer that covers stone and brick masonry with RCC walls and ceilings. Additionally, wall plastering is effective in leveling wall and ceiling surfaces, Gypsum and cement are also used to make textures or plaster and finishes. cement plaster:- Cement plaster is a homogeneous mixture made of Portland cement, sand, and water. The thickness of cement plaster is usually between 12 and 20 millimeters, depending on the type of wall or roof surface that needs to be plastered. Note: A rich cement plaster mixture is obtained by mixing one part  The pros Cement plast

Basic civil engineering interview questions Minimum spacing between chairs is 1 metre sand used in India obtained from Ennore ( Tamil Nadu) Concrete cube is filled in 3 layers Minimum percentage of steel in column is 0.8 % of gross area 1 yard is equal to 3 feet Slump cone field in 4 layers Binding wire required of 1 metric ton is 8 kg to 10 kg Technical name of binding wire is Annealed wire What is ties ? Ties are transverse reinforcement of column What is stirrups ? Stirrups is transverse reinforcement of beam What are the concrete test ? Slump test Compressive strength test Water permeability test Water absorption test Type of slumps True slumps -   the concrete mass after the test when slumps evenly all around without disintegration is called TRUE slump . Shear slump - when one half of the concrete mass slide down the other is called   Shear slump. This type of slope obtained in a lean concrete mix Collapse slump - when the sample is collapse due to adding excessive water. it is

HIGHWAY ENGINEERING QUESTION What is IRC? Indian road Congress What is coefficient of longitudinal friction ? Coefficient of longitudinal friction is 0.35 to 0.4     Speed.                     Friction       20-30km/h.                0.40      40km/h.                       0.38       50km/h.                     0.37       60km/h.                    0.36       65km/h.                    0.36        80km/h.                   0.35       100km/h.                  0.35 What is the coefficient of lateral fusion? Coefficient of lateral friction is 0.15 Carriageway Single lane                                     3.75m Two lane without raised kerb.   7m Two lane with raised kerb.         7.5 m Intermediate carriageway.         5.5m Multilane payment                       3.5 m per lane Minimum width of vehicle as per IRC 2.44 m Width of shoulder as per IRC 2.5 m Total reaction time as per IRC 2.53 sec What is superelevation ?  Raising of outer edge of payment with respect to inner edge througho

Road construction take long time ? Because From rugged dirt paths to modern super highways roads are one of those consistent background characters in nearly every person’s story. And, if you’ve ever been a driver, I know another similar character in your life road construction. Most of us love having wide, smooth roadwaysto take us to work to home and everywhere else we travel. But, we’re hardly ever excited to see aconstruction project starting on our favorite roadway. I’m here to change that  or least to try. I love construction  always have and whenit happens along my commute, I love it even more because I get to see the slow but steady progress each day. And, I think  or at least I hope  that ifyou can know a little bit more about what’s going on behind those orange cones, you might appreciate it a little more as well. we’re talking about earthwork for roadways. The first roads in history were probably formedas people or animals followed the same trail long enough to tamp down the

In this Article I will discuss about behaviour of cement concrete using alternative materials. The requirement of concrete aggregate in India is large corresponding to currentannual production of cement of 300 million tons total requirement of coarse,and fine aggregate for use in cement concrete mortar and plasters of about1,500 metric tons per year is a safe estimate. there is difficulty inobtaining natural aggregates within economic distances. search for alternatesources of aggregates thus assumes importance. one such alternative isrecycled concrete aggregate derived from construction and demolition wastes, whichallow conservation of natural resources and land. aggregate in concrete constructions typically account for 75 percent of the total volume. the majorityof concrete constructions till date essentially resort to aggregatematerials derived from natural resources conforming to is 383.  However due to the need of conserving natural resources and issues relating to sustainabilitye