Web pages, are pages availible through the internet. A website is a collection of web-pages. Blogs are a type of website.
Thus: all blogs consist of web pages.
Other than that, nobody can tell you if your website should be in form of a blog without knowing more about what and how you will be using your site.
What blogs typically are used for you can read on Wikipedia:
https://en.wikipedia.org/wiki/Blog
this site or whatever
