Rebars & Uses

1) Rebars are transported to the construction site

Created with Nokia Smart Cam
Created with Nokia Smart Cam

2) Rebars are bundled up according to their size e.g. A rebar with a metric size 25M will have a diameter of 25.2mm or 2.52cm (Rebar thickness).

3) Concrete is then drilled along the edges of concrete balcony/patio in residential construction.

Created with Nokia Smart Cam
Created with Nokia Smart Cam

4) Rebars are then cut using special rebar saw as per the dimensions of the hole in the drilled concrete…

Created with Nokia Smart Cam
Created with Nokia Smart Cam

5) Concrete Adhesive anchoring kit is used to fill the concrete holes with anchoring adhesive before permanently placing the rebar in the concrete

Created with Nokia Smart Cam
Created with Nokia Smart Cam

6) Vertical and horizontal rebars are connected to corner Rebars using rebar ties…..

Created with Nokia Smart Cam
Created with Nokia Smart Cam

7) Heat sink pipes/slabs (for temperature controlled snow melt) are then installed along the Rebars using cable ties…

Created with Nokia Smart Cam
Created with Nokia Smart Cam

8) Solid particles, rocks and other waste along the edges of Rebars and formwork are removed using a heavy duty construction vacuum…. Note: Even a tiny nail can cause an air gap after concrete pour over…These air gaps expand in winter as water that seeps in cools in to ice causing cracks in concrete and eventually leading to breaking apart of larger concrete chunks/blocks…

Created with Nokia Smart Cam
Created with Nokia Smart Cam

9) Concrete is finally poured over and allowed to cool down….Concrete formwork is then removed.

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Cellphone Batteries


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   Cellphone batteries have become an important accessory in the spare department! With the number of cellphone users expected to reach 2.6 billion by 2019, it is no wonder that cell phone batteries has become a lucrative product in the consumer electronics industry. “Most of the mobile market growth can be attributed to the increasing popularity of smartphones” (Statista, 2016). With online world becoming more popular and important in people’s lives, it is no wonder smartphones are evolving and becoming more complex at a rate unprecedented. With this complexity, arises the demand for service industry for cellphones. Many businesses that sell phones in the market, service them as well! Battery installation is one of the many services that cell phone stores, shops and booths provide. To the consumer, it is easy and convenient to get their cell phone batteries installed when they purchase them. Some choose to buy batteries online and do the installation themselves but damage the phone in the process of disassembling them with their inexperienced hands. Hence, a knowledge of batteries is important which includes battery life, battery installation and types of chargers that are used in the market!

   First of all, one is able to avoid surprises after purchasing an expensive gadget if he/she checks the features of the battery for that particular model of cell phone.All online retailers/wholesalers list battery specifications on their website. These specifications include the battery capacity, model compatibility and practical battery life. The battery capacity which is listed in mAh (milliampere per hour)is unit of electric charge over time transferred by one steady current of one ampere flowing for an hour! All batteries for different smartphones have different battery capacity and so this unit listing is important in case one does not know if their phone model is compatible with that battery! Next, listed under specifications is model compatibility. One can verify if their cellphone model listed at the back of the phone is compatible with their battery. Also, listed under features is the practical cellphone battery life. It shows the talk time for that cell phone as well as stand by time! For example, I phone 5S batteries give ten hours of talk time (2g/3g) and 250 hours on standby mode when not in use! This is crucial in preventing cell phone shut downs due to low battery during an important call or using a GPS on phone while driving for example!Hence, these compatibility and description listings not only add to the knowledge of batteries but help in the purchase of battery chargers.

   Secondly, the knowledge of batteries is crucial in the purchase of battery chargers. These battery chargers include the various wall plugins, USB chargers and power cases available in the market! Battery chargers range from $10 to $30 for a power case while some are even more expensive. The talk time indicates what kind of charger a user may buy. Also, many cell phone user manuals online (eg. http://www.retrevo.com) have user manuals that show a user how to check for battery power used by different device activities such as camera, apps etc! Some consume more power than other reducing average battery life overall. Based on cell phone usage and average battery life, one can spend appropriate amount on cell phone battery chargers and spare batteries.For example, a power case may extend battery life by couple of hours which is crucial when travelling or when one does not have access to wall outlets!

   Last but not least, the knowledge of cell phones for which the cell phone battery is purchased determines the types of installation needed! For some cellphone like nokia, one only needs to pop the back cover upon to install the battery without the need of phone disassembly. Other phones however like Apple’s I phones might need professional technician to install the batteries if one is to save himself from damaging the parts. The technicians also carry appropriate tools for different cellphone models which gave saves the user extra bucks being spent on disassembly tools. Though many websites (ifixit for example) list repair and disassembly manuals and guides, it is very easy to lose a screw or two and even to break the inside parts with the pry bar. Some even break their screens while installing batteries as the phone slips out of their hands. Thus, it’s crucial to battery installation that one has knowledge about the batteries.

   In conclusion, though the online retailers have battery description and specifications listed on their website, not all cellphones are listed! Consumers who buy cellphones online are often not provided with this information! Hence, manufacturers provide cell phone battery data sheet  with all battery specs listed.

I phone Tool Pry-bar for battery replacement without damage

Iphone Tool Prybar.jpg