An assessment is the value placed on a property by the town or city's assessor's office for the purpose of determining the property tax due. An entire town will be assessed during a 4-12 month period with values determined by a team of qualified assistants after viewing properties and interviewing owners.
We originally planned to lay the patio on a gravel and sand bed with the joints filled with sand. However, the guy doing the landscape design said we need to mortar the patio if we plan to use it for entertainment purposes, such as having a table and chairs on it.- Use a level religiously for the base layer and laying the rocks. -- Make sure you have a frame to contain the sand or it will seep out. -- Have a base layer of sand at least 2 deep. Flagstone rocks vary in thickness and you need the sand to adjust heights to get them all level.
(At some point, this turns the mortar into concrete.) Here is a quote that I find on one site: Mortar is a cement/sand/water (and usually lime) mixture designed for laying up masonry units like cement block, stone or brick. Mortar is sticky so it adheres to the block, stone or brick.Concrete is designed to stand alone.. While I am sure I have not covered all of the factors here, this should give you an idea.oncrete, mortar and grouts are all mixtures of Portland cement, water, and aggregates (sand, and in the case of concrete: gravel.). Concrete is used for structural purposes, and it's primary role is to support a load.